Electroacoustic radiation from a point source in a moving magnetoactive plasma

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860875· OSTI ID:6136341

Dobrydnev, B V; Rutkevich, I M ^[1]

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1. Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13/19, 127412, Moscow (Russian Federation)

The three-dimensional problem of the wave propagation from a point source in a moving magnetoactive plasma is considered for the case of monochromatic waves. The magnetic Reynolds number is assumed to be small, so that the potential approximation for the electric field perturbation can be accepted. The cases of subsonic and supersonic main flows are considered. The method of integral transformations is used for the solution of the problem. The high-frequency asymptotic expansion of the solution is obtained and analyzed. For a supersonic flow, the existence of the electric and gas-dynamic perturbations outside the classic Mach cone is established, and the properties of these perturbations are examined.

• OSTI ID: 6136341
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:10; ISSN 0899-8221; ISSN PFBPEI
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
700370 -- Plasma Fluid & MHD Properties-- (1992-)
ASYMPTOTIC SOLUTIONS
FLUID FLOW
FLUID MECHANICS
HYDRODYNAMICS
HYDROMAGNETIC WAVES
INTEGRAL TRANSFORMATIONS
MAGNETIC FIELDS
MAGNETIC REYNOLDS NUMBER
MAGNETOACOUSTIC WAVES
MAGNETOHYDRODYNAMICS
MECHANICS
PLASMA
POINT SOURCES
RADIATION SOURCES
REYNOLDS NUMBER
SOUND WAVES
SUBSONIC FLOW
SUPERSONIC FLOW
TRANSFORMATIONS
WAVE PROPAGATION