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Decompressive (cooling rarefaction) shock in optically thin radiative plasma.

D K Morozov1, M Pekker

  • 1Instituto de Ciencias Nucleares, UNAM, 70-543, CU, 04510, Mexico, Distrito Federal, Mexico.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|July 20, 2001
PubMed
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Decompressive shock waves, where pressure decreases, are possible in radiative plasma, unlike in traditional gas dynamics. A stable, steady-state model for these radiative shock waves was successfully presented.

Area of Science:

  • Plasma physics
  • Astrophysics
  • Fluid dynamics

Background:

  • Classical gas dynamics typically prohibits decompressive shock waves.
  • Radiative processes can significantly alter plasma behavior under shock conditions.

Purpose of the Study:

  • To investigate the possibility of decompressive shock waves in radiative plasma.
  • To present a stable, steady-state model for such phenomena.

Main Methods:

  • Theoretical analysis of shock waves in a radiative plasma.
  • Development of a simplified yet realistic model for radiative losses.
  • Verification against Landau stability criteria.

Main Results:

  • Demonstrated the physical possibility of decompressive shock waves in radiative plasma.

Related Experiment Videos

  • Presented a specific example of a steady-state decompressive shock wave.
  • Confirmed that the presented model satisfies Landau stability criteria.

    • Conclusions:

    • Decompressive shock waves are a valid phenomenon in radiative plasmas.
    • The developed model provides a foundation for studying these waves.
    • The stability of these waves suggests their potential relevance in astrophysical contexts.