[FLASH-USERS] External forcing

[Robert Fisher]

Dear Andrea, Norbert :

  StirTurb does stochastic driving, including the forcing contribution in
an operator-split fashion to both the momentum and energy equations for
long-wavelength, low-wavenumber waveband. Please see this paper for a more
in-depth description:

http://iopscience.iop.org/1402-4896/2008/T132/014046/

This approach may be modified substantially to handle a forcing function
with arbitrary space and time dependence. Please feel free to contact me
for more information.

  Best wishes,

  Bob


On Tue, Apr 29, 2014 at 11:24 AM, Norbert Flocke
<flocke at flash.uchicago.edu>wrote:

> Hi Andrea,
>
> I am not an expert in this, but I recall something similar is done in the
> Stir Unit. Please have a look at the FLASH User's guide under section 16.3.
> I think an external force is introduced into the MHD to simulate stirring.
>
> Hope this helps,
> Norbert
>
>
>
> On Tue, 29 Apr 2014, andrea costa wrote:
>
>  Dear all,
>>
>> we need to add an external forcing in an MHD simulation.
>> The external force must be space and time dependent
>> Can someone  tell me how to implement this problem
>> thanks in advance
>> andrea
>>
>> --
>> Dr. Robert Fisher
>> Assistant Professor
>> University of Massachusetts/Dartmouth
>> Department of Physics
>> 285 Old Westport Road
>> North Dartmouth, Massachusetts 02747
>> robert.fisher at umassd.edu
>> http://www.novastella.org
>>
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