Direct Numerical Simulation of Turbulent Combustion

Reacting Flows

Universität Heidelberg
Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR)

Direct numerical simulations of turbulent combustion can provide comprehensive information about the basic interaction mechanisms of turbulence and chemical reactions. Such information is needed for the development of enhancedturbulence and turbulent combustion models. To reach this target, detailed chemical reaction schemes and multicomponent diffusion models have to be included in the DNS, leading to a demand of computational power that can onlybe provided by the fastest supercomputers available.Therefore, we developed a DNS code to be used on distributed memory parallelcomputers with message passing communication. This code uses detailed transport,thermodynamical and reaction models. The parallelization strategy is based ona domain-decomposition in conjunction with dynamic load-balancing.This code is utilized for an investigation of the fundamental processes apparentin turbulent premixed and non-premixed flames.