Benchmark numerical simulations of rarefied non-reacting gas flows using an open-source DSMC code

Cassineli Palharini, Rodrigo and White, Craig and Scanlon, Thomas J. and Brown, Richard E. and Borg, Matthew K. and Reese, Jason M. (2015) Benchmark numerical simulations of rarefied non-reacting gas flows using an open-source DSMC code. Computers and Fluids, 120. pp. 140-157. ISSN 0045-7930

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    Abstract

    Validation and verification represent an important element in the development of a computational code. The aim is establish both confidence in the algorithm and its suitability for the intended purpose. In this paper, a direct simulation Monte Carlo solver, called dsmcFoam, is carefully investigated for its ability to solve low and high speed non-reacting gas flows in simple and complex geometries. The test cases are: flow over sharp and truncated flat plates, the Mars Pathfinder probe, a micro-channel with heated internal steps, and a simple micro-channel. For all the cases investigated, dsmcFoam demonstrates very good agreement with experimental and numerical data available in the literature.