Class implementing micromixer object. More...

#include <micromixer.h>

Public Member Functions
virtual void	advanceOdt (const double p_tstart, const double p_tend, const int iLevel=-1)

void	check_balance (int io)

	micromixer ()

void	init (domain *p_domn)

virtual	~micromixer ()

Public Attributes
domain *	domn
	pointer to domain object

cvodeDriver *	cvode
	pointer to cvode driver object for implicit ODE integration (stiff)

double	tstart

double	time
	current time

double	tend

double	dtStepNominal
	nominal step size

double	dt
	actual step size (shortened based on output or tend)

vector< double >	dxc
	abs(\Delta(x^c))

vector< double >	dx
	abs(\Delta(x))

vector< double >	gf
	grid factor for derivatives: (df/dx) = gf * (f - f)

bool	LdoDump

vector< double >	uDL_1
	for DL instability: old velocity

vector< double >	uDL_2
	for DL instability: new velocity

vector< double >	xDL_1
	for DL instability: = "old" cell center positions

vector< double >	xDL_2
	for DL instability: = "new" cell center positions

vector< double >	posDL_old
	for DL instability: = "new" cell center positions

vector< double >	oldrho_or_rhov
	store the old density for continuity

int	nsteps
	total number of timesteps taken during simulation

Protected Member Functions
virtual void	setGf ()
	sets the gf array

virtual void	setGridDxcDx ()
	sets the dxc array

virtual void	set_oldrho_or_rhov ()
	record old rho (or rho*u) for continuity

virtual bool	adaptGridIfNeeded ()
	expansion or contraction --> adapt

virtual void	setNominalStepSize ()
	sets a nominal dt for the whole period

void	setStepSize ()
	set a local dt for interruptions (dump or tend)

void	updateGrid ()
	enforce the continuity condition: (e.g., rho*dx = const).

void	do_DL (string doWhat)

void	advanceOdtSingleStep_Explicit ()

void	advanceOdtSingleStep_SemiImplicit ()

void	advanceOdtSingleStep_StrangSplit ()

Protected Attributes
bool	LforceSetNominalStepSize
	used in updateGrid when splitting cells to indicate to reset timestep size later

Detailed Description

Class implementing micromixer object.

Author: David O. Lignell

Definition at line 23 of file micromixer.h.

Constructor & Destructor Documentation

◆ micromixer()

micromixer::micromixer ( )

micromixer constructor function

Definition at line 19 of file micromixer.cc.

◆ ~micromixer()

virtual micromixer::~micromixer ( )

inlinevirtual

Definition at line 87 of file micromixer.h.

Member Function Documentation

◆ adaptGridIfNeeded()

bool micromixer::adaptGridIfNeeded ( )

protectedvirtual

expansion or contraction --> adapt

Adapt during diffusion for spatial cases for which grid contraction results in small grid cells

Definition at line 381 of file micromixer.cc.

◆ advanceOdt()

void micromixer::advanceOdt	(	const double	p_tstart,
		const double	p_tend,
		const int	iLevel = -1 )

virtual

Advance ODT solution: diffusion and reaction

Definition at line 41 of file micromixer.cc.

◆ advanceOdtSingleStep_Explicit()

void micromixer::advanceOdtSingleStep_Explicit ( )

protected

Advance ODT solution: diffusion and reaction

Definition at line 137 of file micromixer.cc.

◆ advanceOdtSingleStep_SemiImplicit()

void micromixer::advanceOdtSingleStep_SemiImplicit ( )

protected

Advance ODT solution: diffusion and reaction; Some terms are implicit, others explicit. Nominally the mixing terms are explicit. Calling the cvode driver. First order. dphi/dt = D(phi_0) + S(phi) : solving from t0 to t1. Here, D() is the diffusive term, and S() is the (stiff) source term. We solve the whole RHS implicitly, but the D(phi_0) is fixed at time 0.

Definition at line 176 of file micromixer.cc.

◆ advanceOdtSingleStep_StrangSplit()

void micromixer::advanceOdtSingleStep_StrangSplit ( )

protected

Advance ODT solution: diffusion and reaction; Some terms are implicit, others explicit. Nominally the mixing terms are explicit. Calling the cvode driver. First order. dphi/dt = D(phi_0) + S(phi) : solving from t0 to t1. Here, D() is the diffusive term, and S() is the (stiff) source term. We solve the whole RHS implicitly, but the D(phi_0) is fixed at time 0.

Definition at line 218 of file micromixer.cc.

◆ check_balance()

void micromixer::check_balance ( int io )

Definition at line 465 of file micromixer.cc.

◆ do_DL()

void micromixer::do_DL ( string doWhat )

protected

Processes the DL instability

Parameters

doWhat input: string that indicates what to do.

Definition at line 398 of file micromixer.cc.

◆ init()

void micromixer::init ( domain * p_domn )

micromixer initialization function

Parameters

p_domn input: set domain pointer with.

Definition at line 30 of file micromixer.cc.

◆ set_oldrho_or_rhov()

void micromixer::set_oldrho_or_rhov ( )

protectedvirtual

record old rho (or rho*u) for continuity

Store the old density for continuity. This is a function for generality on inheritance.

Definition at line 459 of file micromixer.cc.

◆ setGf()

void micromixer::setGf ( )

protectedvirtual

sets the gf array

Set the grid factor array

Definition at line 289 of file micromixer.cc.

◆ setGridDxcDx()

void micromixer::setGridDxcDx ( )

protectedvirtual

sets the dxc array

Set the cell sizes vectors: dxc and dx

Definition at line 71 of file micromixer.cc.

◆ setNominalStepSize()

void micromixer::setNominalStepSize ( )

protectedvirtual

sets a nominal dt for the whole period

Set time step size. This is based on a diffusive (or other) timescale. This is a uniform step size for the given integration period. The actual step size will be rest based on a data dump or tend.

Definition at line 85 of file micromixer.cc.

◆ setStepSize()

void micromixer::setStepSize ( )

protected

set a local dt for interruptions (dump or tend)

Set time step size. This is based on a diffusive (or other) timescale. This is a uniform step size for the given integration period. The actual step size will be rest based on a data dump or tend.

Definition at line 118 of file micromixer.cc.

◆ updateGrid()

void micromixer::updateGrid ( )

protected

enforce the continuity condition: (e.g., rho*dx = const).

Update grid for gas expansion

Definition at line 309 of file micromixer.cc.

Member Data Documentation

◆ cvode

cvodeDriver* micromixer::cvode

pointer to cvode driver object for implicit ODE integration (stiff)

Definition at line 30 of file micromixer.h.

◆ domn

domain* micromixer::domn

pointer to domain object

Definition at line 29 of file micromixer.h.

◆ dt

double micromixer::dt

actual step size (shortened based on output or tend)

Definition at line 36 of file micromixer.h.

◆ dtStepNominal

double micromixer::dtStepNominal

nominal step size

Definition at line 35 of file micromixer.h.

◆ dx

vector<double> micromixer::dx

abs(\Delta(x))

Definition at line 39 of file micromixer.h.

◆ dxc

vector<double> micromixer::dxc

abs(\Delta(x^c))

Definition at line 38 of file micromixer.h.

◆ gf

vector<double> micromixer::gf

grid factor for derivatives: (df/dx) = gf * (f - f)

Definition at line 40 of file micromixer.h.

◆ LdoDump

bool micromixer::LdoDump

Definition at line 42 of file micromixer.h.

◆ LforceSetNominalStepSize

bool micromixer::LforceSetNominalStepSize

protected

used in updateGrid when splitting cells to indicate to reset timestep size later

Definition at line 76 of file micromixer.h.

◆ nsteps

int micromixer::nsteps

total number of timesteps taken during simulation

Definition at line 52 of file micromixer.h.

◆ oldrho_or_rhov

vector<double> micromixer::oldrho_or_rhov

store the old density for continuity

Definition at line 50 of file micromixer.h.

◆ posDL_old

vector<double> micromixer::posDL_old

for DL instability: = "new" cell center positions

Definition at line 48 of file micromixer.h.

◆ tend

double micromixer::tend

Definition at line 34 of file micromixer.h.

◆ time

double micromixer::time

current time

Definition at line 33 of file micromixer.h.

◆ tstart

double micromixer::tstart

Definition at line 32 of file micromixer.h.

◆ uDL_1

vector<double> micromixer::uDL_1

for DL instability: old velocity

Definition at line 44 of file micromixer.h.

◆ uDL_2

vector<double> micromixer::uDL_2

for DL instability: new velocity

Definition at line 45 of file micromixer.h.

◆ xDL_1

vector<double> micromixer::xDL_1

for DL instability: = "old" cell center positions

Definition at line 46 of file micromixer.h.

◆ xDL_2

vector<double> micromixer::xDL_2

for DL instability: = "new" cell center positions

Definition at line 47 of file micromixer.h.

The documentation for this class was generated from the following files:

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ micromixer()

◆ ~micromixer()

Member Function Documentation

◆ adaptGridIfNeeded()

◆ advanceOdt()

◆ advanceOdtSingleStep_Explicit()

◆ advanceOdtSingleStep_SemiImplicit()

◆ advanceOdtSingleStep_StrangSplit()

◆ check_balance()

◆ do_DL()

◆ init()

◆ set_oldrho_or_rhov()

◆ setGf()

◆ setGridDxcDx()

◆ setNominalStepSize()

◆ setStepSize()

◆ updateGrid()

Member Data Documentation

◆ cvode

◆ domn

◆ dt

◆ dtStepNominal

◆ dx

◆ dxc

◆ gf

◆ LdoDump

◆ LforceSetNominalStepSize

◆ nsteps

◆ oldrho_or_rhov

◆ posDL_old

◆ tend

◆ time

◆ tstart

◆ uDL_1

◆ uDL_2

◆ xDL_1

◆ xDL_2