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Inclusion of Retardation Effects in Hydrodynamical Calculations

Author

Listed:
  • T. Kodama

    (Instituto de Física, Universidade Federal do Rio de Janeiro, C.P. 68528, 21945-970 Rio de Janeiro, Brazil)

  • R. Donangelo

    (Instituto de Física, Universidade Federal do Rio de Janeiro, C.P. 68528, 21945-970 Rio de Janeiro, Brazil)

  • M. W. Guidry

    (Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996-1200, USA;
    Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6372, USA)

Abstract

In numerical large-scale hydrodynamics calculations, such as the description of a supernova explosion, instantaneous thermalization of the fluid matter is assumed independently of the size of the volume element used in the calculation. One expects, however, the appearance of transient processes such as convection currents, vortices, and other collective motion on smaller and smaller scales, which can delay equilibration. To account for these effects in a simple one-dimensional hydrodynamical calculation, we introduce retardation in the hydrodynamic equations and show that, when strong shocks are present, such effects may have considerable influence on the evolution of the system.

Suggested Citation

  • T. Kodama & R. Donangelo & M. W. Guidry, 1998. "Inclusion of Retardation Effects in Hydrodynamical Calculations," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 9(05), pages 745-758.
    • Handle: RePEc:wsi:ijmpcx:v:09:y:1998:i:05:n:s0129183198000650
    DOI: 10.1142/S0129183198000650
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