- See odtresearch.com for more information about ODT, LEM, and HiPS.
Full resolution of three-dimensional turbulence fields is very costly from a computational viewpoint. The ODT model fully resolves a flow field along a notional line-of-sight. Turbulent advection is simulated through stochastic eddy events that are implemented through grid rearrangements via triplet maps. These eddy events occur with a given size, location, and frequency that depends on the evolution of the velocity field itself, in a way that mimimics that turbulent energy cascade. This figure at right shows a single realization of a 1 meter buoyant ethylene fire The flow is vertical with eddy events occurring at the locations shown at far right. A new, adaptive mesh ODT code is under development that is being used to build an AME code in which coupled sets of ODT lines evolve to provide detailed, affordable three-dimensional flows.