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.
- rarefied gas dynamics
- low/high speed flows
Cassineli Palharini, R., White, C., Scanlon, T. J., Brown, R. E., Borg, M. K., & Reese, J. M. (2015). Benchmark numerical simulations of rarefied non-reacting gas flows using an open-source DSMC code. Computers and Fluids, 120, 140-157. https://doi.org/10.1016/j.compfluid.2015.07.021