High-Speed, High-Fidelity Simulation of Reacting Flows

Towards Energy and Environmental Research

Hong G. Im[1]

Recent advances in the massively parallel computing technology have enabled high-end simulations of laminar and turbulent reacting flows to unravel fine-scale physics with ultimate realism and accuracy.  To achieve this mission successfully, however, it is essential to develop reliable algorithms that are free from turbulence modeling errors and numerical dissipation. This presentation will provide an overview of recent progress in the project on high-fidelity direct numerical simulations (DNS) of turbulent reacting flows with detailed chemistry, sponsored by the US Department of Energy’s SciDAC (Scientific Discovery through Advanced Computing) Program. Recognizing the complexities in developing various code components and their integration, a consortium of researchers with interdisciplinary skills from multiple institutions are undertaking the tasks to re-design and enhance the capabilities of the DNS code, in terms of sophistication and versatility of the numerical algorithms and physical modules, such as the radiation heat transfer, spray dynamics, and soot formation models, as an attempt to address many challenging issues in today’s energy research. Some recent progress and accomplishments made under the project will be highlighted by the discussion of several application examples.