Effects of numerical methods on comparisons between experiments and simulations of shock-accelerated mixing.

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We consider the detailed structures of mixing flows for Richtmyer-Meshkov experiments of Prestridge et al. [PRE 00] and Tomkins et al. [TOM 01] and examine the most recent measurements from the experimental apparatus. Numerical simulations of these experiments are performed with three different versions of high resolution finite volume Godunov methods. We compare experimental data with simulations for configurations of one and two diffuse cylinders of SF{sub 6} in air using integral measures as well as fractal analysis and continuous wavelet transforms. The details of the initial conditions have a significant effect on the computed results, especially in the case ... continued below

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8 p.

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Rider, William; Kamm, J. R. (James R.); Tomkins, C. D. (Chris D.); Zoldi, C. A. (Cindy A.); Prestridge, K. P. (Katherine P.); Marr-Lyon, M. (Mark) et al. January 1, 2002.

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We consider the detailed structures of mixing flows for Richtmyer-Meshkov experiments of Prestridge et al. [PRE 00] and Tomkins et al. [TOM 01] and examine the most recent measurements from the experimental apparatus. Numerical simulations of these experiments are performed with three different versions of high resolution finite volume Godunov methods. We compare experimental data with simulations for configurations of one and two diffuse cylinders of SF{sub 6} in air using integral measures as well as fractal analysis and continuous wavelet transforms. The details of the initial conditions have a significant effect on the computed results, especially in the case of the double cylinder. Additionally, these comparisons reveal sensitive dependence of the computed solution on the numerical method.

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8 p.

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  • Submitted to: Third International Symposium on Finite Volumes for Complex Applications, June 24-28, 2002, Porquerolles, France

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  • Report No.: LA-UR-02-1514
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976118
  • Archival Resource Key: ark:/67531/metadc927988

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  • January 1, 2002

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 9, 2016, 11:24 p.m.

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Rider, William; Kamm, J. R. (James R.); Tomkins, C. D. (Chris D.); Zoldi, C. A. (Cindy A.); Prestridge, K. P. (Katherine P.); Marr-Lyon, M. (Mark) et al. Effects of numerical methods on comparisons between experiments and simulations of shock-accelerated mixing., article, January 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc927988/: accessed April 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.