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Growth and decay of sonic waves in thermally radiative magnetogasdynamics

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The propagation of weak discontinuities headed by a wavefront and their formation into shock waves are investigated in a thermally-radiative ideal plasma. It is found that all compressive waves grow without bound only if the magnitude of initial discontinuity associated with the wave exceeds a critical value. In particular, the grow and decay of weak discontinuities in plane, cylindrical, and spherical geometries have been discussed and the shock formation distance and time in all these cases have been derived in presence of magnetic field and radiation, separately.

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Ojha, S.N., Singh, A. Growth and decay of sonic waves in thermally radiative magnetogasdynamics. Astrophys Space Sci 179, 45–54 (1991). https://doi.org/10.1007/BF00642352

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  • Radiation
  • Magnetic Field
  • Shock Wave
  • Compressive Wave
  • Spherical Geometry