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Nonlinear evolution of the sheet pinch

Published online by Cambridge University Press:  13 March 2009

W. H. Matthaeus and
David Montgomery
W. H. Matthaeus
Affiliation:
Physics Department, The College of William and Mary, Williamsburg, Virginia 23185
David Montgomery
Affiliation:
Physics Department, The College of William and Mary, Williamsburg, Virginia 23185
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Abstract

An incompressible, dissipative numerical code of the spectral type is used to follow the nonlinear evolution of a magnetohydrodynamic sheet pinch in two spatial dimensions. The evolution involves considerable turbulent activity in the electric current field, with the excited spatial scales ranging from the size of the containing volume down to the dissipation lengths of the magnetic and velocity fields. Strong current filamentation near magnetic X-points is observed, as is lsquo;jetting’, or expulsion of magnetofluid from the vicinity of the X-point parallel to the current sheet.

Information

Type
Research Article
Information
Journal of Plasma Physics , Volume 25 , Issue 1 , February 1981, pp. 11 - 41
Copyright
Copyright © Cambridge University Press 1981

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