Decay interaction of waves in a magnetoactive plasma

1968 ◽  
Vol 9 (3) ◽  
pp. 303-306
Author(s):  
N. P. Giorgadze ◽  
E. M. Khirseli ◽  
N. L. Tsintsadze
Keyword(s):  
Magnetoactive Plasma ◽  
Decay Interaction ◽  
Interaction Of Waves

Scattering and transformation of waves in a magnetoactive plasma

1966 ◽  
Vol 89 (6) ◽  
pp. 227-258 ◽  
Author(s):  
A.G. Sitenko ◽  
Yu.A. Kirochkin
Keyword(s):  
Magnetoactive Plasma

Wave action on currents with vorticity

1999 ◽  
Vol 386 ◽  
pp. 329-344 ◽  
Author(s):  
BENJAMIN S. WHITE
Keyword(s):  
Phase Shift ◽  
Deep Water ◽  
Current Velocity ◽  
Wave Action ◽  
Ray Theory ◽  
Wkb Method ◽  
Interaction Of Waves ◽  
New Equation ◽  
Spatially Varying

The interaction of waves on deep water with spatially varying currents may be described by a ray theory, with the wave amplitudes determined by the principle of conservation of wave action (CWA). However, all previous deep water derivations of CWA are restricted to the case of an irrotational current. In this paper, both the ray theory and CWA are derived by a WKB method without the assumption of irrotationality. Also derived is a new equation for a spatially varying phase shift which is not predicted by the usual ray theory, and which, in general, displaces the positions of the wave crests by a distance on the order of a wavelength. This phase shift, which is caused by variations of the current velocity with depth, vanishes in the irrotational case, and so is in accord with the irrotational theory.

Sign in / Sign up

Export Citation Format

Share Document