Criteria for Scaled Laboratory Simulations of Astrophysical MHD Phenomena

Details Criteria for Scaled Laboratory Simulations of Astrophysical MHD Phenomena Criteria for Scaled Laboratory Simulations of Astrophysical MHD Phenomena

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apjs..127..465r&link_type=abstract

The Astrophysical Journal Supplement Series, Volume 127, Issue 2, pp. 465-468.

Astronomy and Astrophysics

Astronomy

45

Hydrodynamics, Methods: Laboratory, Magnetohydrodynamics: Mhd, Shock Waves

Scientific paper

We demonstrate that two systems described by the equations of the ideal magnetohydrodynamics (MHD) evolve similarly, if the initial conditions are geometrically similar and certain scaling relations hold. The thermodynamic properties of the gas must be such that the internal energy density is proportional to the pressure. The presence of the shocks is allowed. We discuss the applicability conditions of the ideal MHD and demonstrate that they are satisfied with a large margin both in a number of astrophysical objects, and in properly designed simulation experiments with high-power lasers. This allows one to perform laboratory experiments whose results can be used for quantitative interpretation of various effects of astrophysical MHD.

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