Chaotic behaviour of high Mach number flows

Details Chaotic behaviour of high Mach number flows Chaotic behaviour of high Mach number flows

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...148...35v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 148, no. 1, July 1985, p. 35-42.

Astronomy and Astrophysics

Astrophysics

Chaos, Mach Number, Magnetohydrodynamic Flow, Magnetohydrodynamic Stability, Shock Waves, Space Plasmas, Autocorrelation, Hamiltonian Functions, Magnetic Fields, Magnetohydrodynamic Turbulence, Plasma Equilibrium, Stochastic Processes, Two Fluid Models

Scientific paper

The stability of the superalfvénic flow of a two-fluid plasma model with respect to the Mach number and the angle between the flow direction and the magnetic field is investigated. It is found that, in general, a large scale chaotic region develops around the initial equilibrium of the laminar flow when the Mach number exceeds a certain threshold value. After reaching a maximum the size of this region begins shrinking and goes to zero as the Mach number tends to infinity. As a result high Mach number flows in time independent astrophysical plasmas may lead to the formation of "quasi-shocks" in the presence of little or no dissipation.

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