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Validating the Flash Code: Vortex-Dominated Flows

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Abstract

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 M a = 1.2 shock wave with a cylinder of gaseous sulfur hexafluoride (SF6) 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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Authors and Affiliations

  1. ASCI FLASH Center, University of Chicago, Chicago, IL, USA

    Greg Weirs, Vikram Dwarkadas & Tomek Plewa

  2. Los Alamos National Laboratory, USA

    Chris Tomkins & Mark Marr-Lyon

Authors
  1. Greg Weirs
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  2. Vikram Dwarkadas
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  3. Tomek Plewa
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  4. Chris Tomkins
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  5. Mark Marr-Lyon
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Correspondence to Greg Weirs.

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Weirs, G., Dwarkadas, V., Plewa, T. et al. Validating the Flash Code: Vortex-Dominated Flows. Astrophys Space Sci 298, 341–346 (2005). https://doi.org/10.1007/s10509-005-3966-5

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  • DOI: https://doi.org/10.1007/s10509-005-3966-5

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