Computational Turbulent Reacting Flow

330T Engineering Building
Brigham Young University
Provo, UT 84602
801-422-1772
davidlignell@byu.edu

David O. Lignell

Department of Chemical Engineering
Brigham Young University (BYU)
330 Engineering Building, Provo, UT 84602

EDUCATION AND PROFESSIONAL PREPARATION

APPOINTMENTS AND PROFESSIONAL EXPERIENCE

  • Professor September 2020
    Chemical Engineering Department,
    Brigham Young University, Provo, Utah

  • Associate Professor September 2015—August 2020
    Chemical Engineering Department,
    Brigham Young University, Provo, Utah

  • Assistant Professor January 2009—August 2015
    Chemical Engineering Department,
    Brigham Young University, Provo, Utah

  • Adjunct Assistant Professor September 2012—March 2021
    Chemical Engineering Department,
    University of Utah, Salt Lake City, Utah

  • Postdoctoral Researcher March—Dec. 2008
    Combustion Research Facility,
    Sandia National Laboratories, Livermore, California

  • Graduate Student Intern June 2005—March 2008
    Combustion Research Facility,
    Sandia National Laboratories, Livermore, California

  • Graduate Research Assistant September 2003—June 2005
    Chemical Engineering Department,
    University of Utah, Salt Lake City, Utah

  • Engineer June 2001—August 2003
    Reaction Engineering International,
    Salt Lake City, Utah

AWARDS and HONORS

  • Edwin Cozzens Teaching and Learning Faculty Fellowship (2024-2027)
  • Ira A. Fulton College of Engineering Excellence in Citizenship Award (2021)
  • J.J. Christensen Professorship (2020-2025)
  • Outstanding Faculty Award, BYU Chemical Engineering (2016-2017)
  • John Zink Graduate Scholarship (2004)
  • Wayne Brown Graduate Fellowship (2003)
  • John Zink Undergraduate Scholarship (2001)
  • Nuclear Engineering Program Undergraduate Scholarship (1999)
  • National Dean’s List (1998)
  • Materials Science Freshman Scholarship (1996)

TEACHING

STUDENTS ADVISED

Current Graduate Students

  • Jansen Berryhill, Ph.D.
  • Masoomeh Behrang, Ph.D.

Past Graduate Students

  • Victoria Lansinger, Ph.D. 2022
  • Kamron Brinkerhoff, M.S. 2022
  • Alexander Josephson, Ph.D. 2018
  • Guangyuan Sun, Ph.D. 2015
  • Derek Harris, M.S. 2013
  • Abinash Paudel, M.S. 2013
  • Elizabeth Monson, M.S. 2012
  • Dan Smyth, Ph.D., 2011

Undergraduate Research Assistants

  • Current: Jared Porter, Davis Hume, Dylan Rankine, Nathaniel Adams, Bailey Duncan, Niccolo Rosborough

  • Past: Karl Spinti, Megan Jewell, Connor Moran, Sally Jensen, Joshua Bedwell, Isaac Wheeler, Mohammad Chebli, Larissa Otterstrom, Alexa Urrea, Ethen Saxey, June Ricks Keturah Oldham, Katherine Butler, Carlos Vergara, Braydon Hunt, Wesley Arnold, T.J. Mix, Joshua Frei, C. Paxton Gray, Brett Siddoway, Kyle Primavera, Jackson Udy, Brigham Hansen, Sage Maddux, Donald Peterson, Spencer Heilner, Kevin Stevens, Jeremy Johansen, Alessandro Perego, Justin Ward, Neal Gaffin, Mikel Zaitzeff, Calvin Howell, Tanner Jasperson, Sierra Anderson, Keslee Deem, Sarah Skousen, Carl Prince, Kevin Stevens, Seth Babcock, Steven Lanham, David Sifuentes, Amber White, Garrison Fredline, Chris Werner, Gavin Wardle, Adam Lewis, Spencer Bowman, Ryan Hintze, Taylor Ralston, Sayantan Ghosh, Suman Pokharel, Hans Schmutz, Abinash Paudel, Devin Rappleye

PROFESSIONAL SERVICE, MEMBERSHIPS

BYU Chemical Engineering

  • Advancement and Alumni Committee Chair, Chemical Engineering, BYU, January 2023-Present
  • Associate Chair, Chemical Engineering, BYU, September 2016-December 2022
  • Faculty Search Committee, BYU, Dec. 2021-August 2022
  • Faculty Search Committee Chair, BYU, Dec. 2018-August 2019
  • Graduate Committee, Chemical Engineering, BYU, 2009-2016
  • Web Committee, Chemical Engineering, BYU, 2009-2016, Chair 2012-2016

BYU College and University

  • Faculty Advisory Committee, 2024-Present
  • Fall 2020 Teaching Committee, Chair, College of Engineering, BYU, May 2020-2021
  • BYU Remote Learning Taskforce, BYU, March 2020
  • STEMFI Peer Teaching Partner, BYU, 2019-2020

Combustion Institute

  • Chair, Western States Section of the Combustion Institute (WSSCI), 2023-2025
  • Vice Chair, Western States Section of the Combustion Institute (WSSCI), 2021-2023
  • Vice Chair/Chair elect, US Sections of the Combustion Insitute (USSCI), 2024-2025
  • Board Member, US Sections of the Combustion Insitute (USSCI), 2021-2024
  • Organizing Committee, US National Combustion Meeting , Texas A&M University, Texas, 2021
  • Program Chair, US National Combustion Meeting , Pasadena CA, 2019.
  • Program Chair, WSSCI, 2014-2021; organized WSSCI programs:
    • Caltech 2014,
    • BYU 2015,
    • U. Washington 2016,
    • U. Wyoming 2017,
    • Oregon State 2018,
    • Sandia Albuquerque 2019,
    • Stanford 2020 (later cancelled due to COVID-19).
  • Conference Organizer, Fall 2015 Meeting of the WSSCI at BYU , October 5-6, 2015
  • Board Member, Western States Section of the Combustion Institute, 2010-present

Americal Physical Society–Division of Fluid Dynamics

  • Organizing Committee, 2024
    • Program, Posters, Gallery of Fluid Motion

AIChE

  • AIChE Student Chapter Advisor , Chemical Engineering, BYU, 2015-present
    • BYU AIChE has won an Outstanding Chapter Award each year
  • BYU Safety Ethics Conference advisor to a team of ~15 students, BYU, 2021-2023
  • BYU CCPS Safety Bootcamp organizer, BYU, 2017-2018
  • BYU AIChE Regional Conference , student advisor, BYU, 2017-2018
  • Student Paper Competition Judge, Rocky Mountain Regional Student Conferences: 2017 U. North Dakota; 2019 Colorado School of Mines; 2020 New Mexico Tech; 2021 Colorado State
  • National Meeting session shair, North American Mixing Forum, 2019, 2020, 2021

Mini-Symposium Organizer

  • Reduced-order stochastic modeling and simulation of multiphysical turbulent flows, 8th European Congress on Computational Methods in Applied Science and Engineering (ECCOMAS), June 5-9, 2022, Oslo, Norway, (co-organizer).
  • Map-based stochastic methods for accurate modeling of turbulent heat and mass transfer, ECCOMAS Congress 2020 & 14th WCCM, Virtual Conference, January 11-15, 2020, (co-organizer).
  • Stochastic simulation of turbulent flows using one-dimensional turbulence, SIAM Conference on Computational Science and Engineering, 2015
  • Advances and Applications in One-Dimensional Turbulence Simulation, SIAM 14th International Conference on Numerical Combustion, 2013

Reviewer

  • Reviewer: BYU ORCA grant applications, and other graduate research grant applications
  • Reviewer: BYU NASA Graduate Space Grant Fellowships, 2019.
  • Reviewer: Combustion and Flame, Environmental Engineering Science, Proceedings of the Combustion Institute, Aerosol Science and Technology, Journal of Propulsion and Power, International Journal of Wildland Fire, SoftwareX, Combustion Science and Technology, Combustion Theory and Modelling, Energy and Fuels, Flow Turbulence and Combustion, Active Flow and Combustion Control, Physics of Fluids, International Journal of Environmental Technology and Management, International Journal of Heat and Fluid Flow, Wiley-Interscience textbook proposal.
  • Reviewer: NSF 2015, 2016, NSF OCI-Petascale 2011
  • Reviewer: DOE 2017, 2018

Memberships

  • Member of the Combustion Institute
  • Member American Institute of Chemical Engineers (AICHE)
  • Member of the American Physical Society (APS), 2012-2013, 2024-2025
  • Member of the Society for Industrial and Applied Mathematics (SIAM), 2013, 2015
  • Member of the American Society for Engineering Education (ASEE), 2012

SOFTWARE

WEBSITES

JOURNAL ARTICLES

  • J.P. Berryhill, J.K. Spinti, D.O. Lignell, “Ignis: a one-dimensional laminar flame code,” submitted to SoftwareX June 2024.
  • M. Behrang, T. Starick, I. Wheeler, H. Schmidt, A.R. Kerstein, D.O. Lignell, “Hierarchical parcel-swapping representation of turbulent mixing. Part 4. Extension to the viscous range and to mixing of scalars with nonunity Schmidt numbers,” submitted to Journal of Fluid Mechanics, June (2024).
  • T. Starick, M. Behrang, D.O. Lignell, H. Schmidt, A.R. Kerstein, “Turbulent mixing simulation using the Hierarchical Parcel-Swapping (HiPS) model,” Technische Mechanik, 43:49-58 (2023).
  • V.B. Stephens, J. Bedwell, A.J. Josephson, K. Oldham, D.O. Lignell, “SootLib: a soot model library for combustion simulation,” SoftwareX, 22:101375 (2023).
  • M. Klein, H. Schmidt, D.O. Lignell, “Stochastic modeling of surface scalar-flux fluctuations in turbulent channel flow using one-dimensional turbulence,” International Journal of Heat and Fluid Flow, 93:108889 (2022).
  • V.B. Stephens, S. Jensen, I. Wheeler, D.O. Lignell, “RadLib: a radiative heat transfer model library for CFD,” Computer Physics Communications, 272:108227 , (2022).
  • T.H. Fletcher, D. Haycock, S. Tollefsen, D.O. Lignell, “Merging of horizontally- and vertically-separated small-scale buoyant flames,” Fire, 4:51-76 , (2021).
  • A.P Richards, D.O. Lignell, T.H. Fletcher, “A comparison of mixture fraction approaches for coal combustion simulations,” in review, Fuel, December 29, 2020.
  • V.B. Stephens, D.O. Lignell, “One-dimensional turbulence (ODT): computationally efficient modeling and simulation of turbulent flows,” SoftwareX, 13:100641 (2020).
  • R. Rakhi, D.O. Lignell, H. Schmidt, “Investigating spatially developing turbulent boundary layers with uniform blowing using a one-dimensional stochastic turbulence model,” submitted to Flow, Turbulence and Combustion, May 2020.
  • M. Fistler, A.R. Kerstein, D.O. Lignell, M. Oevermann, "Turbulence modulation in particle-laden, stationary homogeneous isotropic turbulence using One-Dimensional Turbulence," Physical Review Fluids, 5:044308 (2020).
  • J.A. Medina Méndez, M. H. Schmidt, D.O. Lignell, "Application of the one dimensional turbulence model to incompressible channel and pipe flow," submitted to the Journal of Applied Mathematics and Mechanics, May, 2019, in review.
  • A.J. Josephson, E.M. Hopkins, D.O. Lignell, R.R. Linn, "Reduction of a detailed soot model for simulation of pyrolyzing solid fuel combustion," Combustion Theory and Modelling, DOI: 10.1080/13647830.2019.1656823, (2019).
  • D.O. Lignell, M.J. Memmott, A.A. Andersen, “STEM outreach to high school students through a chemical engineering fluid mechanics course project,” Transactions on Techniques in STEM Education, 4(1):50-59, (2018).
  • A.J. Josephson, R.R. Linn, D.O. Lignell, "Modeling soot formation from solid complex fuels," Combustion and Flame, 196:265-283  (2018).
  • D.O. Lignell, V.B. Lansinger, J. Medina Méndez, M. Klein, A.R. Kerstein, H. Schmidt, M. Fistler, M. Oevermann, “One-dimensional turbulence modeling for cylindrical and spherical flows: model formulation and application,” submitted to Theoretical and Computational Fluid Dynamics, November 20, 2017.
  • A.J. Josephson, N.D. Gaffin, S.T. Smith, T.H. Fletcher, D.O. Lignell, “Modeling soot consumption with Bayesian statistics,” Energy and Fuels, 31(10):11291-11303 (2017).
  • A. Abdelsamie, D.O. Lignell, D. Thevenin, “Comparison between ODT and DNS for ignition occurrence in turbulent premixed jet combustion: Safety-relevant applications,” Zeitschrift Fur Physikalische Chemie, 231(10):1709-1735 (2017).
  • J. Udy, S. Maddux, D. Peterson, S. Heilner, K. Stevens, D.O. Lignell, J.D. Hedengren, “Review of injection optimization for enhanced oil recovery,” Processes, 5(3):34-59 (2017).
  • C. Han, D.O. Lignell, E.R. Hawkes, J.H. Chen, H. Wang, “Examination of the effect of differential molecular diffusion in DNS of turbulent non-premixed flames,” International Journal of Hydrogen Energy 42(16):11879-11892 (2017).
  • H. Ghiassi, D.O. Lignell, J. Lighty, “Soot oxidation by OH: theory development, model, and experimental validation,” Energy and Fuels, 31(3):2236-2245 (2017).
  • G. Sun, J.C. Hewson, D.O. Lignell, “Evaluation of stochastic particle dispersion modeling in turbulent round jets,” International Journal of Multiphase Flow, 89:108-122 (2017).
  • A.J. Josephson, D.O. Lignell, A.L. Brown, T.H. Fletcher, “Revision to modeling soot derived from pulverized coal,” Energy and Fuels, DOI: 10.1021/acs.energyfuels.6b01007 (2016).
  • E.I. Monson, D.O. Lignell, M.A. Finney, C. Werner, Z. Jozefik, A.R. Kerstein, R.S. Hintze, Simulation of an ethylene wall fire using the spatially-evolving one-dimensional turbulence model, Fire Technology, Special Issue on Validation and Fire Modeling, 52(1):167-196 (2016), (online 2014).
  • A.W. Abboud, B.B. Schroeder, T. Saad, S.T. Smith, D.D. Harris, D.O. Lignell, A numerical comparison on precipitating turbulent flows between large-eddy simulation and one-dimensional turbulence, AIChE Journal, 61(10):3185-3197 (2015).
  • G. Sun, D.O. Lignell, J.C. Hewson, C. Gin, Particle dispersion in homogeneous turbulence using the one-dimensional turbulence model, Physics of Fluids, 26:103301 (2014).
  • D.O. Lignell, G.C. Fredline, and A.D. Lewis, Comparison of one-dimensional turbulence and direct numerical simulation of soot formation and transport in a nonpremixed ethylene jet flame, Proceedings of the Combustion Institute, DOI 10.1016/j.proci.2014.05.046, (2014).
  • B.B. Schroeder, D.D. Harris, S.T. Smith, and D.O. Lignell, Theoretical framework for multiple-polymorph particle precipitation in highly supersaturated systems, Crystal Growth and Design, DOI 10.1021/cg401892b, (2014).
  • A. Krisman, J.C.K. Tang, E.R. Hawkes, D.O. Lignell, J.H. Chen, A DNS evaluation of mixing models for transported PDF modelling of turbulent nonpremixed flames, Combustion and Flame, in 161(8):2085-2106, (2014).
  • D.O. Lignell, A.R. Kerstein, G. Sun, E.I. Monson, Mesh adaption for efficient multiscale implementation of one-dimensional turbulence, Theoretical and Computational Fluid Dynamics 27(3):273-295 (2013).
  • E.D. Gonzalez-Juez, A.R. Kerstein, and D.O. Lignell, Reactive Rayleigh-Taylor turbulent mixing: a one-dimensional-turbulence study, Geophysical and Astrophysical Fluid Dynamics, 107:506-525 (2013).
  • D.O. Lignell, and D.S. Rappleye, One-dimensional turbulence simulation of flame extinction and reignition in planar ethylene jet flames, Combustion and Flame, 159:2930-2943 (2012).
  • E.D. Gonzalez-Juez, A.R. Kerstein, and D.O. Lignell, Fluxes across double-diffusive interfaces: a one-dimensional-turbulence study, Journal of Fluid Mechanics, 677:218-254 (2011).
  • D.O. Lignell, J.H. Chen, and H.A. Schmutz, Effects of Damkohler number on flame extinction and reignition in turbulent nonpremixed flames using DNS, Combustion and Flame 158:949-963 (2010).
  • D.O. Lignell, J.C. Hewson, and J.H. Chen, A-priori analysis of conditional moment closure modeling of a temporal ethylene jet flame with soot formation using direct numerical simulation, Proceedings of the Combustion Institute, 32:1491-1498 (2009).
  • D.O. Lignell, J.H. Chen, and P.J. Smith, Three-dimensional direct numerical simulation of soot formation and transport in a temporally-evolving, nonpremixed ethylene jet flame, Combustion and flame, 155:316-333 (2008).
  • D.O. Lignell, J.H. Chen, P.J. Smith, T. Lu, and C.K. Law, The effect of flame structure on soot formation and transport in turbulent nonpremixed flames using direct numerical simulation, Combustion and Flame, 151:2-28 (2007), Feature article.
  • C.L. Senior, D.O. Lignell, A.F. Sarofim, and A. Mehta, Modeling arsenic partitioning in coal-fired power plants, Combustion and Flame, 147:209-221 (2006).
  • P. Jiang, D.O. Lignell, K.E. Kelly, J.S. Lighty, A.F. Sarofim, and C.J. Montgomery, Simulation of the evolution of particle size distributions in a vehicle exhaust plume with unconfined dilution by ambient air, Journal of the Air and Waste Management Association, 55:437-445 (2005).

PEER REVIEWED CONFERENCE PAPERS

  • D.O. Lignell, M.J. Memmott, A.A. Andersen, "Involving high school students in an engineering fluid mechanics course project," ASEE Rocky Mountain Section Conference, September 22-23, 2017, Brigham Young University, Provo, UT, USA.
  • M. Fistler, D.O. Lignell, A.R. Kerstein, M. Oevermann, “Numerical studies of turbulent particle-laden jets using spatial approach of one-dimensional turbulence,” ILASS-Europe 28th Conference on Liquid Atomization and Spray Systems, September 6-8, 2017, Valencia, Spain.
  • D.O. Lignell, J.H. Chen, and E.S. Richardson, "Terascale direct numerical simulations of turbulent combustion: fundamental understanding towards predictive models," (Invited paper), Journal of Physics: Conference Series, 125:1-10 (2008) (doi:10.1088/1742-6596/125/1/012031).

INVITED PRESENTATIONS

  • D.O. Lignell, Advanced stochastic models for turbulent reacting flows: one-dimensional turbulence, and heirarchical parcel swapping, Brandenburgische Technische Universität, July 17, 2024, Cottbus, Germany.
  • D.O. Lignell, Stochastic simulation of turbulent reacting flows using reduced-dimensional models–ODT and HiPS, University of California Irvine, October 13, 2023, Irvine, CA, USA.
  • D.O. Lignell, Advanced stochastic models and software for turbulent combustion simulations, Reaction Engineering International, April 26, 2023, Midvale, Utah, USA.
  • D.O. Lignell, Modeling detailed turbulence-chemistry interactions in flames and fires using the One-Dimensional Turbulence Model, 10th Triennial International Aircraft Fire and Cabin Safety Research Conference, October 17-20, 2022, Atlantic City, New Jersey, USA.
  • D.O. Lignell, Energy Challenges: Issues, Scales, and Transition, Utah Municipal Power Agency (UMPA) Conference, March 24, 2022, St. George, Utah, USA.
  • D.O. Lignell, Near-wall turbulence and mixing/combustion modeling, UTRC Workshop, June 16, 2019, Phoenix, Arizona, USA.
  • D.O. Lignell, Questions and research in turbulent combustion, Brigham Young University, October 15, 2018, Provo, Utah, USA.
  • D.O. Lignell, Simulation and modeling of turbulent combustion, Brigham Young University, November 16, 2017, Provo, Utah, USA.
  • D.O. Lignell, Multiscale simulation of turbulent flows using One-Dimensional Turbulence (ODT), Sandia National Laboratories, July 11, 2017, Albuquerque, NM, USA.
  • D.O. Lignell, Detailed simulations of soot formation in nonpremixed jet flames, AFOSR/ARO/NSF Basic Combustion Research Review, June 10, 2016, Arlington, VA, USA.
  • D.O. Lignell, Simulation of turbulent reacting flows using ODT, DNS, and LES, Chemical and Environmental Engineering Graduate Seminar, University of California, Riverside, October 30, 2015, Riverside, CA, USA.
  • D.O. Lignell, Multiscale simulation of turbulent reacting flows using DNS and ODT, Chemical Engineering Graduate Seminar, Arizona State University, October 7, 2013, Tempe AZ, USA.
  • D.O. Lignell, Multiscale simulation of turbulent flames--soot, fire, and flame extinction and reignition, (poster), 32nd Annual Combustion Research Meeting, U.S. DOE, Office of Basic Energy Sciences, May 31-June 3, 2011, Warrenton, VA, USA.
  • D.O. Lignell, Research and graduate school at Brigham Young University, Chemical Engineering Undergraduate Seminar, January 26, 2010, The University of Utah, Salt Lake City, UT, USA.
  • D.O. Lignell, Direct numerical simulation of soot formation and transport in turbulent nonpremixed ethylene flames, Chemical Engineering Department Seminar, February 14, 2008, Brigham Young University, Provo, UT, USA.

CONFERENCE PAPERS and PRESENTATIONS

  • J. Porter, J. Berryhill, D.O. Lignell, “A flame-progress variable model with heat loss for flame and fire applications,” FM Global Open Source CFD Fire Modeling Workshop, April 17-18, 2024, Norwood, Massachusetts, USA.
  • J. Berryhill, J. Porter, D.O. Lignell, “Soot modeling in unsteady, one-dimensional flames” FM Global Open Source CFD Fire Modeling Workshop, April 17-18, 2024, Norwood, Massachusetts, USA.
  • J. Berryhille, K. Spinti, D.O. Lignell, “Integration of SootLib into one-dimension unsteady flames,” Spring 2024 Meeting of the Western States Section of the Combustion Institute, March 4-5 2024, University of Utah, Salt Lake City, Utah, USA.
  • M. Behrang, D.O. Lignell, “Evaluation of a novel mixing model (HiPS) for transported PDF modeling,” Fall 2023 Meeting of the Western States Section of the Combustion Institute, October 16-17 2023, California State University Northridge, California, USA.
  • D.O. Lignell, V.B. Stephens, J. Bedwell, A.J. Josephson, K. Oldham, “SootLib: a library for modeling soot formation in combustion systems,” 13th Meeting of the U.S. Joint Sections of the Combustion Institute, March 19-22, 2023, College Station, Texas, USA.
  • M. Behrang, D.O. Lignell, “Poster: Using HiPS as a mixing model for transported PDF calculations of turbulent nonpremixed flames,” 13th Meeting of the U.S. Joint Sections of the Combustion Institute, March 19-22, 2023, College Station, Texas, USA.
  • A.R. Kerstein, J.A. Medina, H. Schmidt, D.O. Lignell, “On the modifications to the spatial formulation of the One-Dimensional Turbulence model for internal flows,” 8th European Congress on Computational Methods in Applied Sciences and Engineering, June 5-9, 2022, Oslo, Norway.
  • T. Starick, M. Behrang, D.O. Lignell, H. Schmidt, A.R. Kerstein, “Turbulent mixing simulation using the Hierarchichal Parcel Swapping (HiPS) model,” Converence on Modeling and Fluid Flow, Budapest Hungary, August 30-September 2, 2022.
  • M. Klein, H. Schmidt, D.O. Lignell, L. Freire, A.R. Kerstein, “Ein stochastischer Ansatz zur Modellierung fluktuierender Oberflächenflüsse in turbulenten Grenzschichten,” DACH Meteorology Conference, March 21-25, 2022.
  • M. Klein, D.O. Lignell, H. Schmidt, “Stochastic modeling of transient surface scalar and momentum fluxes in turbulent boundary layers,” European Meteorological Society Annual Meeting, September 3-10, 2021.
  • D.O. Lignell, M. Behrang, A.R. Kerstein, I. Wheeler, T. Starick, “Turbulent mixing simulation of variable Sc flows using the Hierarchical Parcel Swapping (HiPS) model,” 74th Annual Meeting of the APS Division of Fluid Dynamics, November 21-23, 2021, Phoenix, Arizona, USA.
  • M. Behrang, D.O. Lignell, “Using Hips As a New Mixing Model to Study Differential Diffusion of Scalar Mixing in Turbulent Flows,” AIChE Annual Meeting, November 7-19, 2021, Boston, Massachusetts, USA.
  • M. Klein, D.O. Lignell, H. Schmidt, “Stochastic modeling of transient surface scalar and momentum fluxes in turbulent boundary layers,” European Meteorological Society Annual Meeting, September 6-10, 2021.
  • M. Behrang, I. Wheeler, A.R. Kerstein, T. Starick, H. Schmidt, D.O. Lignell, “Simulation of turbulent mixing using the Hierarchical Parcel Swapping (HiPS) model,” 12th Meeting of the U.S. Joint Sections of the Combustion Institute, May 24-26, 2021, Texas A&M University, Texas, USA.
  • V. Stephens, I. Wheeler, S. Jensen, D.O. Lignell, “Radiative property modeling for CFD,” 12th Meeting of the U.S. Joint Sections of the Combustion Institute, May 24-26, 2021, Texas A&M University, Texas, USA.
  • J. Bedwell, V.B. Stephens, D.O. Lignell, “Soot and software engineering–Using object-oriented design patterns to create models with simple and powerful code,” Rocky Mountain Regional AIChE Student Conference, Colorado State University, April 2-3, 2021.
  • D.O. Lignell, “Stochastic simulation of turbulent flows using reduced dimensional models: ODT, LEM, HiPS,” WCCM-ECCOMAS, Paris, France, January 18-21, 2021.
  • A.R. Kerstein, D.O. Lignell, M. Behrang, I. Wheeler, T. Starick, “Hierarchical Parcel-Swapping (HiPS) representation of turbulent flow and mixing,” WCCM-ECCOMAS, Paris, France, January 18-21, 2021.
  • I. Wheeler, D.O. Lignell, “Hierarchical parcel swapping,” Rocky Mountain Regional AIChE Student Conference, New Mexico Tech University, October 3, 2020.
  • S. Tollefsen, D. Sabin, D. Haycock, D.O. Lignell, T.H. Fletcher, “Analysis of merged flame behavior from two and three fuel sources separated both vertically and horizontally,” Rocky Mountain Regional AIChE Student Conference, New Mexico Tech University, October 3, 2020.
  • Rakhi, D.O. Lignell, H. Schmidt, “A stochastic approach to investigate a spatially developing turbulent boundary layer with uniform blowing,” 91st Annual Meeting of the International Association of Applied Mathematics and Mechanics, March 16-20, 2020, Kassel, Germany.
  • T. Starick, D.O. Lignell, H. Schmidt, “Stochastic modeling of a lifted methane/air jet flame with detailed chemistry,” 91st Annual Meeting of the International Association of Applied Mathematics and Mechanics, March 16-20, 2020, Kassel, Germany.
  • D.O. Lignell, T. Starick, I. Wheeler, J. Frei, “Stochastic simulation of turbulent reacting flows with variable Schmidt numbers,” 2019 Fall Meeting of the Western States Section of the Combustion Institute, October 14-15, 2019, Albuquerque, New Mexico, USA.
  • K. Brinkerhoff, A.J. Josephson, J. Thornock, A. Fry, D.O. Lignell, “The effect of soot in oxy-coal combustion systems,” 2019 Fall Meeting of the Western States Section of the Combustion Institute, October 14-15, 2019, Albuquerque, New Mexico, USA.
  • D.O. Lignell, I. Wheeler, “Use of the Hierarchical Parcel Swapping method to simulation turbulent subgrid reacting flows with variable Schmidt numbers,” AIChE Annual Meeting, November 10-16, 2019, Orlando, Florida, USA.
  • T. Starick, D.O. Lignell, H. Schmidt, “Towards a simple mixing model for reacting flows using Hierarchical Parcel Swapping (HiPS),” 17th European Turbulence Conference, September 3-6, 2019, Torino, Italy.
  • T.H Fletcher, D.O. Lignell, A.J. Josephson, A. Richards, D. Gunderson, T. Holland, “Advances in modeling coal pyrolysis, char combustion, and soot formation from coal tar,” 9th International Symposium on Coal Combustion (ISCC-9), July 21-24, 2019, Qingdao, China.
  • D.O. Lignell, A.R. Kerstein, A. Perego, T. Starick, J. Frie, H. Schmidt, “Application of the Hierarchical Parcel Swapping (HiPS) model to turbulent reacting flows,” 11th Meeting of the U.S. Joint Sections of the Combustion Institute, March 24-27, 2019, Pasadena, California, USA.
  • K. Brinkerhoff, A. Josephson, B. Isaac, J. Thornock, D.O. Lignell, “The effect of soot in oxy-coal combustion systems,” (poster), 11th Meeting of the U.S. Joint Sections of the Combustion Institute, March 24-27, 2019, Pasadena, California, USA.
  • M. Klein, D.O. Lignell, H. Schmidt, "Stochastic modeling of temperature and velocity statistics in spherical-shell convection", EGU Conference on Recent developments in Geophysical Fluid Dynamics: Waves, Turbulence, and Transport, April 7-12, 2019, Vienna, Austria.
  • M. Klein, D.O. Lignell, H. Schmidt, "Map-based modeling of turbulent convection: Application of the One-Dimensional Turbulence Model to planar and spherical geometries" (poster), International Conference on Rayleigh-Benard Turbulence, May 14-18, 2018, Enschede, Netherlands.
  • A.J. Josephson, D.O. Lignell, R. Linn, V.B. Lansinger, "Simplified modeling for soot formation from solid fuels," Spring Meeting of the Western States Section of the Combustion Institute, March 25-27, 2018, Bend, Oregon, USA.
  • J. Frei, D.O. Lignell, "Hierarchical parcel swapping: A novel solution to an old problem," AIChE Rocky Mountain Regional Student Conference, March 23-24, 2018, Provo, Utah, USA.
  • M. Klein, H. Schmidt, D.O. Lignell, "Map-based modeling of high-Ra turbulent convection in planar and spherical geometries," Conference on Modelling Fluid Flow, September 4-7, 2018, Budapest, Hungary.
  • D.O. Lignell, A.R. Kerstein, J. Ward, A. Perego, "A new mixing model for turbulent reacting flows using Hierarchical Parcel Swapping (HiPS)," AIChE Annual Meeting, October 29-November 3, 2017, Minneapolis, Minnesota, USA.
  • D.O. Lignell, A.J. Josephson, B. Isaac, K. Brinkerhoff, "Large Eddy Simulation of soot formation in oxy-coal combustion," AIChE Annual Meeting, October 29-November 3, 2017, Minneapolis, Minnesota, USA.
  • D.O. Lignell, V.B. Lansinger, A.R. Kerstein, "A cylindrical formulation of the One-Dimensional Turbulence (ODT) model for turbulent jet flames," AIChE Annual Meeting, October 29-November 3, 2017, Minneapolis, Minnesota, USA.
  • A.J. Josepson, E. Hopkins, R.R. Linn, D.O. Lignell, "Modeling soot formation from complex fuels," 2017 Fall Meeting of the Western States Section of the Combustion Institute, October 2-3, 2017, Laramie, Wyoming, USA.
  • M. Fistler, D.O. Lignell, A.R. Kerstein, M. Oevermann, "Numerical study of stochastic particle dispersion using One-Dimensional Turbulence," ILASS-Americas 29th Annual Conference on Liquid Atomization and Spray Systems, May 2017, Atlanta, GA, USA.
  • E.D. Gonzalez-Juez, A. Dasgupta, S. Arshad, M. Oevermann, D.O. Lignell, "Effect of the turbulence modeling in large-eddy simulations of nonpremixed flames undergoing extinction and reignition, 55th AIAA Aerospace Sciences Meeting, January 2017, Gaylord, Texas, USA.
  • A.J. Josephson, R.R. Linn, D.O. Lignell, “Detailed modeling of soot formation from solid fuels,” 9th FM Global Open Source CFD Fire Modeling Workshop, May 9-10, 2017, Norwood, Massachussetts, USA.
  • A.J. Josephson, T.H. Fletcher, D.O. Lignell, “Modeling soot in coal systems,” 10th Meeting of the U.S. Joint Sections of the Combustion Institute, April 23-26, 2017, University of Maryland, College Park, Maryland, USA.
  • J.B. Ward, D.O. Lignell, “Hierarchical parcel swapping (HIPS)—A comprehensive subgrid model for turbulent reacting flows,” UCUR conference, February 17, 2017, Utah Valley University, Orem, Utah, USA.
  • S.A. Skousen, V. Lansinger, D.O. Lignell, “Simulations of soot formation using a one-dimensional turbulence model,” UCUR conference, February 17, 2017, Utah Valley University, Orem, Utah, USA.
  • N. Gaffin, A.J. Josephson, D.O. Lignell, “Soot consumption,” UCUR conference, February 17, 2017, Utah Valley University, Orem, Utah, USA.
  • A.J. Josephson, D.O. Lignell, N. Gaffin, “Soot nucleation and consumption in oxy-coal systems,” AIChE Annual Meeting, November 13-18, 2016, San Francisco, California, USA.
  • A.J. Josephson, D.O. Lignell, N. Gaffin, “Soot consumption in oxy-coal systems,” 2016 Spring Meeting of the Western States Section of the Combustion Institute, March 21-22, 2016, Seattle, Washington, USA.
  • A.J. Josephson, D.O. Lignell, “Soot formation and secondary pyrolysis in oxy-coal combustion with large eddy simulation,” AIChE Annual Meeting, November 10, 2015, Salt Lake City, Utah, USA.
  • V.B. Lansinger, D.O. Lignell, J.C. Hewson, “One-dimensional turbulence modeling of soot in turbulent, nonpremixed falmes,” AIChE Annual Meeting, November 10, 2015, Salt Lake City, Utah, USA.
  • C. Shen, D.O. Lignell, T.H. Fletcher, “Flame merging experiments in oxy-coal combustion using large eddy simulation,” 2015 Fall Meeting of the Western States Section of the Combustion Institute, October 5-6, 2015, Brigham Young University, Provo, Utah, USA.
  • A.J. Josephson, D.O. Lignell, “Simulating soot formation in oxy-coal combustion using large eddy simulation,” 2015 Fall Meeting of the Western States Section of the Combustion Institute, October 5-6, 2015, Brigham Young University, Provo, Utah, USA.
  • V.B. Lansinger, D.O. Lignell, J.C. Hewson, “Soot formation in round ethylene jet flames using one-dimensional turbulence,” 2015 Fall Meeting of the Western States Section of the Combustion Institute, October 5-6, 2015, Brigham Young University, Provo, Utah, USA.
  • A.J. Josephson, B.J. Isaac, D.O. Lignell, T.H. Fletcher, "Large eddy simulation of an oxy-coal combustor," 9th Meeting of the U.S. Joint Sections of the Combustion Institute, May 17-20, 2015, Cincinnati, Ohio, USA.
  • J.C. Hewson, D.O. Lignell, S.P. Kearney, D.R. Guildenbecher, V. Lansinger, "One-dimensional turbulence simulation of soot and enthalpy evolution in ethylene jet diffusion flames*," 9th Meeting of the U.S. Joint Sections of the Combustion Institute*, May 17-20, 2015, Cincinnati, Ohio, USA.
  • C. Shen, D.O. Lignell, T.H. Fletcher, "Flame merging experiments in low speed, nonpremixed natural gas flames," 9th Meeting of the U.S. Joint Sections of the Combustion Institute, May 17-20, 2015, Cincinnati, Ohio, USA.
  • C. Li, D.O. Lignell, J.H. Chen, T. Lu, "Detection of local extinction and reignition in nonpremixed ethylene-air flames using chemical explosive mode analysis," 9th Meeting of the U.S. Joint Sections of the Combustion Institute, May 17-20, 2015, Cincinnati, Ohio, USA.
  • J.C. Hewson, D.O. Lignell, S.P. Kearney, D.R. Guildenbecher, V. Lansinger, “One-dimensional turbulence simulation of soot and enthalpy evolution in ethylene jet flames,” F.M. Global Fire Modeling Workshop, May 6, 2015, Norwood, MA, USA.
  • D.O. Lignell, B.J. Isaac, A. Josephson, T.H. Fletcher, J. Thornock, "Large eddy simulation of soot formation in an oxy-coal combustor," 15th International Conference on Numerical Combustion, April 19-22, 2015, Avignon, France.
  • D.O. Lignell, J.C. Hewson, "One-dimensional turbulence simulation: overview and application to soot formation in nonpremixed flames," SIAM Conference on Computational Science and Engineering, March 13-18, 2015, Salt Lake City, Utah, USA.
  • T.H. Fletcher, D.O. Lignell, T. Holland, A.J. Josephson, A. Richards, “Coal particle combustion,” (poster), Stewardship Science Academic Program Symposium, March 11-12, 2015, Santa Fe, NM, USA.
  • G. Sun, D.O. Lignell, J.C. Hewson, Particle time-temperature histories in turbulent flames studied through stochastic modeling, 35th International Symposium on Combustion, (poster), August 4-8, 2014, San Francisco, CA, USA.
  • D.O. Lignell, Direct and stochastic simulation of turbulent reacting flows, Utah Fluids Conference, July 27-28, 2014, Utah State University, Logan, UT, USA.
  • J.C. Hewson, D.O. Lignell, G. Sun, Statistics of particle time-temperature histories in turbulent reacting flows, DTRA Basic Research Technical Review, July, 2014, Springfield, VA, USA.
  • D.O. Lignell, E.I. Monson, G. Fredline, R.S. Hintze, C. Werner, M.A. Finney, Z. Jozefik, A.R. Kerstein, LES, ODT, and experimental investigation of vertical ethylene wall fires, FM Global Open Source CFD Fire Modeling Workshop, May 15-16, 2014, Norwood, MA.
  • G. Sun, D.O. Lignell, J.C. Hewson, and C.R. Gin, Numerical simulation of two-way coupling mechanism in particle-laden turbulent flow based on one-dimensional turbulence model, APS Division of Fluid Dynamics 66th Annual Meeting, November 24-26, 2013, Pittsburgh, PA, USA.
  • D.D. Harris and D.O. Lignell, Kinetic model for stable amorphous calcium carbonate, AICHE Annual Meeting, November 6, 2013, San Francisco, CA, USA.
  • J.C.K. Tang, E.R. Hawkes, D.O. Lignell, A. Krisman, J.H. Chen, Mixing model evaluation for transported PDF modelling of non-premixed ethylene flames, Proceedings of the Australian Combustion Symposium, November 6-8, 2013, Perth, Australia.
  • J.C. Hewson, C. Gin, D.O. Lignell, G. Sun, Statistics of particle time-temperature histories in turbulent reacting flows, DTRA Basic Research Technical Review, July 24, 2013, Springfield, VA, USA.
  • G. Sun, D.O. Lignell, J.C. Hewson, C.R. Gin, Numerical investigation of one- and two-way interaction between jets and dispersed particles (poster), DTRA Basic Research Technical Review, July 24, 2013, Springfield, VA, USA.
  • A. Paudel, D.O. Lignell, M.A. Finney, G. Sun, R.S. Hintze, E.I Monson, Application of one-dimensional turbulence to model fire spread through biomass fuel beds, 8th Meeting of the U.S. Joint Sections of the Combustion Institute, May 19-22, 2013, Park City, UT, USA.
  • D.O. Lignell, A. Lewis, Soot formation in turbulent flames-comparison of ODT and DNS, 8th Meeting of the U.S. Joint Sections of the Combustion Institute, May 19-22, 2013, Park City, UT, USA.
  • D.O. Lignell, J.C. Hewson, G. Sun, A. Paudel, One-dimensional turbulence simulation: advances and combustion applications, SIAM 14th International Conference on Numerical Combustion, April 8-10, 2013, San Antonio, TX, USA.
  • J.C. Hewson, D.O Lignell, G. Sun, A. Paudel, Particle Dispersion in one-dimensional turbulence, SIAM 14th International Conference on Numerical Combustion, April 8-10, 2013, San Antonio, TX, USA.
  • G. Sun, D.O. Lignell, and J.C. Hewson, A stochastic model of particle dispersion in turbulent reacting gaseous environments, APS Division of Fluid Dynamics 65th Annual Meeting November 18-20, 2012, San Diego, CA, USA.
  • A. Paudel, D.O. Lignell, E.I. Monson, and M.A. Finney, Stochastic simulation of fire spread in solid fuel beds, AICHE Annual Meeting, October 28-November 2, 2012, Pittsburgh, PA, USA.
  • G. Sun, D.O. Lignell, and J.C. Hewson, Detailed simulations of Lagrangian particle transport in turbulent reacting flows, (poster), AICHE Annual Meeting, October 28-November 2, 2012, Pittsburgh, PA, USA.
  • D.D. Harris and D.O. Lignell, Simulation of reaction and mixing processes in turbulent aqueous CaCO3 precipitation, (poster), AICHE Annual Meeting, October 28-November 2, 2012, Pittsburgh, PA, USA.
  • J.C. Hewson, D.O. Lignell, G. Sun, Statistics of particle time-temperature histories in turbulent reacting flows, DTRA Basic Research Technical Review, July 23-August 2, 2012, Springfield, VA, USA.
  • G. Sun, D.O. Lignell, and J.C. Hewson, Lagrangian particle transport in turbulent flows, (poster), DTRA Basic Research Technical Review, July 23-August 2, 2012, Springfield, VA, USA.
  • D.D. Harris and D.O. Lignell, Resolved simulation of calcium carbonate crystallization using the one-dimensional turbulence model, AICHE Annual Meeting, October 16-21, 2011, Minneapolis, MN, USA.
  • D.O. Lignell, D. Rappleye, Validation of one-dimensional turbulence simulation of extinguishing planar ethylene jet flames, 7th Meeting of the U.S. Joint Sections of the Combustion Institute, March 20-23, 2011, Georgia Institute of Technology, Atlanta, GA, USA.
  • E.I. Monson, D.O. Lignell, Simulation of an ethylene wall fire using the one dimensional turbulence model, 7th Meeting of the U.S. Joint Sections of the Combustion Institute, March 20-23, 2011, Georgia Institute of Technology, Atlanta, GA, USA.
  • D.O. Lignell, E.I. Monson, M.A. Finney, Modeling flame structure in wildland fires using the one-dimensional turbulence model, 6th International Conference on Forest Fire Research, November 15-18, 2010, Coimbra, Portugal.
  • D.O. Lignell, D.S. Rappleye, A comparison of one-dimensional turbulence (ODT) and direct numerical simulation (DNS) of non-premixed flames with extinction, AICHE Annual Meeting, November 7-12, 2010, Salt Lake City, UT, USA.
  • E.I. Monson, D.O. Lignell, Simulation of an ethylene wall fire using the one-dimensional turbulence model (poster), AICHE Annual Meeting, November 7-12, 2010, Salt Lake City, UT, USA.
  • D.O. Lignell, E.I. Monson, Using ODT to model flame propagation in wildland fire fuel beds, 24th Annual ACERC Conference, Brigham Young University, February 25-26, 2010, Provo, UT, USA.
  • H.A. Schmutz, D.O. Lignell, Scalar dissipation rate in nonpremixed flames with extinction and reignition, 24th Annual ACERC Conference, Brigham Young University, February 25-26, 2010, Provo, UT, USA.
  • D.S. Rappleye, D.O. Lignell, ODT validation with DNS data for extinction and ignition of ethylene flames, 24th Annual ACERC Conference, Brigham Young University, February 25-26, 2010, Provo, UT, USA.
  • D.O. Lignell, J.H. Chen, Effects of Damköhler number on flame extinction and reignition in turbulent nonpremixed flames using DNS, 6th Meeting of the U.S. Joint Sections of the Combustion Institute, May 17-20, 2009, Ann Arbor, MI, USA.
  • D.O. Lignell, Direct numerical simulation of turbulence-chemistry interactions in nonpremixed flames, 23rd Annual ACERC Conference, February 23-24, 2009, Brigham Young University, Provo, UT, USA.
  • J.C. Hewson, D.O. Lignell, A.R. Kerstein, S.H. Kim, H. Pitsch, R.O. Fox, Modelling differential diffusion in nonpremixed combustion: soot transport in mixture fraction space, Center for Turbulence Research Summer Program, July 7-August 1, 2008, Sanford University, USA.
  • D.O. Lignell, J.H. Chen, Investigation of flame extinction and reignition modes in nonpremixed ethylene jet flames using direct numerical simulation, SIAM 12th International Conference on Numerical Combustion, March 31-April 2, 2008, Monterey, CA, USA.
  • J.C. Hewson, A. Ricks, D.O. Lignell, A.R. Kerstein, Modeling differential diffusion with conditional moment closure, SIAM 12th International Conference on Numerical Combustion, March 31-April 2, 2008, Monterey, CA, USA.
  • C.S. Yoo, D.O. Lignell, E.S. Richardson, J.H. Chen, DNS of stabilization of turbulent lifted nonpremixed jet flames in vitiated coflow, SIAM 12th International Conference on Numerical Combustion, March 31-April 2, 2008, Monterey, CA, USA.
  • A. Cuoci, T. Faravelli, E. Ranzi, P.J. Smith, D.O. Lignell (presenter), Effects of turbulent fluctuations on the numerical predictions of soot formation and oxidation in turbulent nonpremixed flames using a coupled radiation/flamelet model, AICHE Annual Meeting, Nov. 4-9, 2007, Salt Lake City, UT, USA.
  • D.O. Lignell, J.H. Chen, T. Lu, C.K. Law, Direct numerical simulation of extinction and reignition in a nonpremixed turbulent ethylene jet flame*, Fall Meeting of the Western States Section of the Combustion Institute*, Oct. 16-17, 2007, Livermore, CA, USA.
  • D.O. Lignell, J.C. Hewson, J.H. Chen, A-priori analysis of CMC modeling of turbulent soot formation using direct numerical simulation, Fall Meeting of the Western States Section of the Combustion Institute, Oct. 16-17, 2007, Livermore, CA, USA.
  • D.O. Lignell, P.J. Smith, J.H. Chen, Simulation and modeling of soot formation in nonpremixed combustion using DNS, Workshop on Heat Transfer in Fires, Sep. 20-21, 2007, Salt Lake City, UT, USA.
  • D.O. Lignell, C.S. Yoo, J.H. Chen, R. Sankaran, M. Fahey, Petascale combustion science, performance and optimization, Cray Scaling Workshop, Oak Ridge National Laboratory, July 30-31, 2007, Oak Ridge, TN, USA.
  • D.O. Lignell, P.J. Smith, J.H. Chen, Validation of mixing and reaction models for sooting nonpremixed turbulent flames using DNS*, NAMF Mixing Conference XXI*, June 17-22, 2007, Park City, UT, USA.
  • D.O. Lignell, J.H. Chen, P.J. Smith, T. Lu, C.K. Law, Direct numerical simulation of soot formation and transport in nonpremixed ethylene flames, 5th Meeting of the Joint Sections of the Combustion Institute, March 25-28, 2007, San Diego, CA, USA.
  • N. Krishnamoorthy, D.R. Yeates, D.O. Lignell, J. Spinti, P.J. Smith, The feasibility of mixture fraction and heat loss mapping for characterizing turbulent nonpremixed flames, Fall Meeting of the Western States Section of the Combustion Institute, March 27-28, 2006, Boise ID, USA.
  • D.O. Lignell, P.J. Smith, J.H. Chen, DNS of soot formation and transport in nonpremixed ethylene flames in a single vortex-eddy, and two dimensional decaying turbulence configurations, Fire Model Workshop, May 8-9, 2006, Albuquerque, NM, USA.
  • D.O. Lignell, P.J. Smith, Verification of heat loss in a steady laminar flamelet reaction model, Verification Workshop, March 16-17, 2005, Albuquerque, NM, USA.
  • C.L. Senior, D.O. Lignell, Z. Chen, B. Shiley, A. Sarofim, Modelling gaseous mercury behavior in practical combustion system, Air Quality IV: Mercury, Trace Elments, and Particulate Matter, Sep 22-24, 2003, Arlington, VA, USA.
  • C.L. Senior, D.O. Lignell, B. Shiley, Z. Chen, A. Sarofim, Kinetic models for predicting the behavior of mercury in coal-fired power plants, ACERC Annual Conference, Feb 19-20, 2003, Salt Lake City, UT, USA.
  • K. Davis, H. Shim, D.O. Lignell, M. Denison, L. Felix, Evaluation of biomass cofiring injection strategies using CFD simulations: pilot- and full-scale results, 27th International Technical Conference on Coal Utilization and Fuel Systems, March 4-7, 2002, Clearwater, FL, USA.
  • C.L. Senior, D.O. Lignell, Z. Chen, A.F. Sarofim, T.W. Dixon, Characterization of reactivity of green and calcined petroleum coke with oxygen for application to combustion systems, 2005 TMS Annual Meeting and Exhibition, Feb 13-17, 2005, San Francisco, CA, USA.