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Title: Intermediate nonlinear regime of a line-tied g mode

Abstract

A sequence of nonlinear regimes is identified for the nonlinear development of a line-tied g mode. The dynamics of the intermediate nonlinear regime is described. This regime is operable when the mode's convection amplitude is comparable to the mode width in the direction of the density gradient. The governing equations are derived. Comparisons between these equations and direct magnetohydrodynamic simulations show agreement.

Authors:
; ; ; ;  [1];  [2]
  1. Center for Plasma Theory and Computation, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20975031
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 5; Other Information: DOI: 10.1063/1.2671230; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; COMPARATIVE EVALUATIONS; CONVECTION; EQUATIONS; MAGNETOHYDRODYNAMICS; NONLINEAR PROBLEMS; PLASMA; PLASMA DENSITY; PLASMA INSTABILITY; PLASMA SIMULATION

Citation Formats

Zhu, P., Hegna, C. C., Sovinec, C. R., Bhattacharjee, A., Germaschewski, K., and Space Science Center and Center for Magnetic Self-Organization, University of New Hampshire, Durham, New Hampshire 03824. Intermediate nonlinear regime of a line-tied g mode. United States: N. p., 2007. Web. doi:10.1063/1.2671230.
Zhu, P., Hegna, C. C., Sovinec, C. R., Bhattacharjee, A., Germaschewski, K., & Space Science Center and Center for Magnetic Self-Organization, University of New Hampshire, Durham, New Hampshire 03824. Intermediate nonlinear regime of a line-tied g mode. United States. doi:10.1063/1.2671230.
Zhu, P., Hegna, C. C., Sovinec, C. R., Bhattacharjee, A., Germaschewski, K., and Space Science Center and Center for Magnetic Self-Organization, University of New Hampshire, Durham, New Hampshire 03824. Tue . "Intermediate nonlinear regime of a line-tied g mode". United States. doi:10.1063/1.2671230.
@article{osti_20975031,
title = {Intermediate nonlinear regime of a line-tied g mode},
author = {Zhu, P. and Hegna, C. C. and Sovinec, C. R. and Bhattacharjee, A. and Germaschewski, K. and Space Science Center and Center for Magnetic Self-Organization, University of New Hampshire, Durham, New Hampshire 03824},
abstractNote = {A sequence of nonlinear regimes is identified for the nonlinear development of a line-tied g mode. The dynamics of the intermediate nonlinear regime is described. This regime is operable when the mode's convection amplitude is comparable to the mode width in the direction of the density gradient. The governing equations are derived. Comparisons between these equations and direct magnetohydrodynamic simulations show agreement.},
doi = {10.1063/1.2671230},
journal = {Physics of Plasmas},
number = 5,
volume = 14,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}