Nonlinear equation for Farley–Buneman waves in multispecies plasma

Journal Article · Sun May 15 04:00:00 EDT 2016 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X16050081· OSTI ID:22614135

Litt, S. K.; Bains, A. S. ^[1]; Pokhotelov, O. A.; Onishchenko, O. G. ^[2]; Horton, W. ^[3]

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1. University of Saskatchewan, Saskatoon, Department of Physics and Engineering Physics (Canada)
2. Russian Academy of Sciences, Schmidt Institute of Physics of the Earth (Russian Federation)
3. University of Texas at Austin, Institute for Fusion Studies (United States)

The nonlinear equation describing the Farley–Buneman (FB) waves in multispecies collisional plasmas is derived by employing the multiple-scale reduction analysis. It is shown that the presence of several ion species with different collisionalities and different ion masses removes the degeneracy of the nonlinear equation and generates the nonlinear terms resulting in wave steepening and wave breaking. This effect may be responsible for formation of one-dimensional coherent FB waves of a finite amplitude.

• OSTI ID: 22614135
• Journal Information: Plasma Physics Reports, Journal Name: Plasma Physics Reports Journal Issue: 5 Vol. 42; ISSN PPHREM; ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
COLLISIONAL PLASMA
IONS
NONLINEAR PROBLEMS
ONE-DIMENSIONAL CALCULATIONS
REST MASS
WAVE PROPAGATION