Kelvin-Holmholtz instabilities in a sheared compressible plasma

Details Kelvin-Holmholtz instabilities in a sheared compressible plasma Kelvin-Holmholtz instabilities in a sheared compressible plasma

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.204..821r&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 204, Aug. 1983, p. 821-831.

Astronomy and Astrophysics

Astrophysics

32

Astrophysics, Kelvin-Helmholtz Instability, Plasma Compression, Compressible Flow, Incompressible Flow, Magnetic Fields, Magnetohydrodynamic Stability, Shear Flow, Shear Layers, Velocity Distribution

Scientific paper

Kelvin-Helmholtz instabilities for the case of a homogeneous compressible plasma containing a velocity shear and a magnetic field are investigated. It is shown that, in the incompressible limit, the shear layer is stable to modes making arbitrary angles in the flow provided the total velocity jump across the shear layer U(O) is less than twice the Alfven speed V(A). Again assuming a field parallel to the flow, it is fond that for U(O) greater than 2V(A) a magnetic field exerts a slightly destabilizing effect for wavelengths comparable to the shear layer width. For the compressible case, with modes and magnetic field parallel to the flow, it is found that stability exists if V(A) equals or exceeds the speed of sound, provided that the Mach number is greater than about one. For transverse magnetic fields and modes parallel to the flow, the sound speed S is replaced by (S-squared + V(A)-squared) to the 1/2, and the results are applied to the nonmagnetic compressible case.

Affiliated with

Also associated with

No associations

Rating

Kelvin-Holmholtz instabilities in a sheared compressible plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Kelvin-Holmholtz instabilities in a sheared compressible plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kelvin-Holmholtz instabilities in a sheared compressible plasma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1471927