Solar Physics

, Volume 143, Issue 1, pp 69–88 | Cite as

Nonlinearity effects on resonant absorption of surface Alfvén waves in incompressible plasmas

  • M. S. Ruderman
  • Marcel Goossens
Article

Abstract

The resonant absorption of small amplitude surface Alfvén waves is studied in nonlinear incompressible MHD for a viscous and resistive plasma. The reductive perturbation method is used to obtain the equation that governs the spatial and temporal behaviour of small amplitude nonlinear surface Alfvén waves. Numerical solutions to this equation are obtained under the initial condition that att = 0 the spatial variation is purely sinusoidal. The numerical results show that nonlinearity accelerates the wave damping due to resonant absorption. Resonant absorption is a more efficient wave damping mechanism than can be anticipated on the basis of linear theory.

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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • M. S. Ruderman
    • 1
  • Marcel Goossens
    • 2
  1. 1.Institute for Problems in MechanicsRussian Academy of SciencesMoscowRussia
  2. 2.Center for Plasma AstrophysicsK.U. LeuvenHeverleeBelgium

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