Validating the FLASH Code: Vortex-Dominated Flows

Details Validating the FLASH Code: Vortex-Dominated Flows Validating the FLASH Code: Vortex-Dominated Flows

2004-05-21

arxiv.org/abs/astro-ph/0405410v1

Astronomy and Astrophysics

Astrophysics

10 pages, 5 figures, presented at the 5th International Conference on High Energy Laboratory Astrophysics, Tucson, AZ, March 1

Scientific paper

10.1007/s10509-005-3966-5

As a component of the Flash Center's validation program, we compare FLASH simulation results with experimental results from Los Alamos National Laboratory. The flow of interest involves the lateral interaction between a planar Ma=1.2 shock wave with a cylinder of gaseous sulfur hexafluoride (SF_6) in air, and in particular the development of primary and secondary instabilities after the passage of the shock. While the overall evolution of the flow is comparable in the simulations and experiments, small-scale features are difficult to match. We focus on the sensitivity of numerical results to simulation parameters.

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