Published June 1996 | Version v1
Journal article

Effect of coupling and linear transformation of waves in shear flows

  • 1. Physics Department, University of Cape Town, Rondebosch 7700 (South Africa)
  • 2. International Center of Theoretical Physics, Trieste 34100 (Italy)
  • 3. Department of Physics, Tbilisi State University, Chavchavadze avenue 2, 380028 Tbilisi, Republic of (Georgia)
  • 4. Department of Plasma Physics, Space Research Institute, Street Profsoyuznaya 84/32, 117810 Moscow (Russia)
  • 5. Department of Theoretical Astrophysics, Abastumani Astrophysical Observatory, Tbilisi 380060, Republic of (Georgia)

Description

A new linear mechanism of reciprocal transformation of waves and a corresponding energy transfer in shear flows is discovered. The effect is demonstrated on the simplest example emdash the two-dimensional waves in unbounded, parallel hydromagnetic flow with uniform velocity shear. The phenomenon discovered is of importance for magnetohydrodynamics and fusion plasma devices and for various terrestrial and astrophysical shear flows. Grasping the result became possible thanks to the nonmodal analyses of the perturbation evolution in the flow. copyright 1996 The American Physical Society

Additional details

Publishing Information

Journal Title
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Journal Volume
53
Journal Issue
6
Journal Page Range
p. 6028-6031.
ISSN
1063-651X
CODEN
PLEEE8

INIS