Unified Solver for Rarefied and Continuum Flows in Multi- Component Gas Mixtures
نویسندگان
چکیده
A Unified Flow Solver (UFS) has been developed for simulations of rarefied, transitional and continuum flows based on direct numerical solution of the Boltzmann equation coupled to kinetic schemes of gas dynamics. The UFS uses dynamically adaptive mesh and automatic domain decomposition into kinetic and continuum domains based on continuum breakdown criteria. This paper describes UFS extensions to mixtures of atomic and molecular gases. Results of simulations for selected benchmark problems are presented including shock wave structure in a binary mixture of atomic gases and a rotationally excited molecular gas, supersonic flows of gas mixtures around cylinder. Challenges and future plans are discussed.
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