Dynamic Shock Modelling: MHD With Hysteresis Resistivity and Viscosity

M. Gedalin; E. Liverts; M. Balikhin; R. A. Treumann

Dynamic Shock Modelling: MHD With Hysteresis Resistivity and Viscosity

M. Gedalin, E. Liverts, M. Balikhin, R. A. Treumann

Research output: Contribution to journal › Meeting Abstract

Abstract

We numerically analyze a perpendicular MHD shock using the hysteresis model, where the resistivity and viscosity are switched on and off at different steepness of the shock profile. Such behavior may be caused by current driven instabilities which are of threshold character. A compressive fluid with a simple polytropic state equation is considered. It is shown that the hysteresis behavior is responsible for the overshoot formation and weak nonstationarity of the shock profile.

Original language	English GB
Journal	Geophysical Research Abstracts
Volume	21
State	Published - 1 Dec 2002

Keywords

2154 Planetary bow shocks
7839 Nonlinear phenomena
7851 Shock waves

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http://adsabs.harvard.edu/abs/2002AGUFMSH21A0498G

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title = "Dynamic Shock Modelling: MHD With Hysteresis Resistivity and Viscosity",

abstract = "We numerically analyze a perpendicular MHD shock using the hysteresis model, where the resistivity and viscosity are switched on and off at different steepness of the shock profile. Such behavior may be caused by current driven instabilities which are of threshold character. A compressive fluid with a simple polytropic state equation is considered. It is shown that the hysteresis behavior is responsible for the overshoot formation and weak nonstationarity of the shock profile.",

keywords = "2154 Planetary bow shocks, 7839 Nonlinear phenomena, 7851 Shock waves",

author = "M. Gedalin and E. Liverts and M. Balikhin and Treumann, {R. A.}",

year = "2002",

month = dec,

day = "1",

language = "אנגלית",

volume = "21",

journal = "Geophysical Research Abstracts",

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TY - JOUR

T1 - Dynamic Shock Modelling: MHD With Hysteresis Resistivity and Viscosity

AU - Gedalin, M.

AU - Liverts, E.

AU - Balikhin, M.

AU - Treumann, R. A.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - We numerically analyze a perpendicular MHD shock using the hysteresis model, where the resistivity and viscosity are switched on and off at different steepness of the shock profile. Such behavior may be caused by current driven instabilities which are of threshold character. A compressive fluid with a simple polytropic state equation is considered. It is shown that the hysteresis behavior is responsible for the overshoot formation and weak nonstationarity of the shock profile.

AB - We numerically analyze a perpendicular MHD shock using the hysteresis model, where the resistivity and viscosity are switched on and off at different steepness of the shock profile. Such behavior may be caused by current driven instabilities which are of threshold character. A compressive fluid with a simple polytropic state equation is considered. It is shown that the hysteresis behavior is responsible for the overshoot formation and weak nonstationarity of the shock profile.

KW - 2154 Planetary bow shocks

KW - 7839 Nonlinear phenomena

KW - 7851 Shock waves

M3 - תקציר הצגה בכנס

SN - 1029-7006

VL - 21

JO - Geophysical Research Abstracts

JF - Geophysical Research Abstracts

ER -

Dynamic Shock Modelling: MHD With Hysteresis Resistivity and Viscosity

Abstract

Keywords

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