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one-way-coupled magnetohydrodynamics with transient magnetic fields |
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September 27, 2013, 07:20 |
one-way-coupled magnetohydrodynamics with transient magnetic fields
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#1 |
New Member
Christoph Kratzsch
Join Date: Nov 2011
Location: Freiberg
Posts: 28
Rep Power: 14 |
Hi everyone,
i 'm searching for a method to add the one-way-coupled MHD-equations with momentum source of transient magnetic fields. This means quasi-(static) approximation for low magnetic Reynolds-numbers but not static . I searched a lot in the literature, but can't find a reference regarding that problem. Can everyone share some information, where i can find a solution for that? Best regards , Christoph |
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September 30, 2013, 10:31 |
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#2 |
Senior Member
Jonas T. Holdeman, Jr.
Join Date: Mar 2009
Location: Knoxville, Tennessee
Posts: 128
Rep Power: 18 |
I am not sure what you are asking. Do you mean adding a Lorentz force term to the fluid equations for specified magnetic fields? By one-way do you mean the magnetic field affects the fluid but the fluid does not affect the magnetic field?
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September 30, 2013, 12:34 |
Sry for the coarse description ;-)
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#3 | |
New Member
Christoph Kratzsch
Join Date: Nov 2011
Location: Freiberg
Posts: 28
Rep Power: 14 |
Quote:
yes i mean the addition of an lorentz-force-term to the Navier-Stokes-Equations. At this time i'm using quasi-static approximation inside a solver: This is maintained if the magnetic reynolds number . The magnetic fields reads: . But i don't have the possibility to describe time-dependent magnetic fields. In an two-way-coupling i have a time variation due to the coupling of velocity and magnetic field. Therefore : Now i want a time-varying magnetic field or . This means rotating, travelling or pulsating magnetic fields without two-way-coupling. Maybe i don't understand it right. So please can you explain why two-way-coupling is necessary if the initial magnetic fields become time-dependant and the induced magnetic fields will be neglected. Best regards , Christoph |
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