Convergent, compressible Richtmyer-Meshkov experiment-zero order hydrodynamics

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Cylindrical experiments were performed on the OMEGA laser at the University of Rochester to study unstable interfaces in single and double shells. For single shells a marker layer of more opaque and higher density material is placed between foam and an outside ablator. The marker is either smooth or with a well defined surface roughness. For double shells an inner cylinder is placed along the outer cylinder axis. The outer cylinder is irradiated directly with 50 laser beams which produces a strong shock (mach number 5-15) that passes through the unstable marker interf'ace creating a Richtmyer-Meshkov (RM) instability. For double ... continued below

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19 p.

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R.), Magelssen G. R. (Glenn; Scott, J. M. (John M.); Lanier, N. E. (Nicholas E.); Batha, S. H. (Steven H.); Balkey, M. M. (Matthew M.); Barnes, C. W. (Christopher, W.) et al. January 1, 2002.

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Description

Cylindrical experiments were performed on the OMEGA laser at the University of Rochester to study unstable interfaces in single and double shells. For single shells a marker layer of more opaque and higher density material is placed between foam and an outside ablator. The marker is either smooth or with a well defined surface roughness. For double shells an inner cylinder is placed along the outer cylinder axis. The outer cylinder is irradiated directly with 50 laser beams which produces a strong shock (mach number 5-15) that passes through the unstable marker interf'ace creating a Richtmyer-Meshkov (RM) instability. For double shells this shock bounces off the inner cylinder back to the incoming marker layer causing it to decelerate. We present comparisons of the measured smooth marker layer hydrodynamics with computer simulations using both Lagrangian and Eulerian codes.

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19 p.

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  • Submitted to: 44th Annual APS/DPP Meeting, Orlando, Florida, Nov. 11-15, 2002

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  • Report No.: LA-UR-02-6957
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976429
  • Archival Resource Key: ark:/67531/metadc928710

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 2002

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 5:45 p.m.

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R.), Magelssen G. R. (Glenn; Scott, J. M. (John M.); Lanier, N. E. (Nicholas E.); Batha, S. H. (Steven H.); Balkey, M. M. (Matthew M.); Barnes, C. W. (Christopher, W.) et al. Convergent, compressible Richtmyer-Meshkov experiment-zero order hydrodynamics, article, January 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc928710/: accessed July 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.