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Question about plasma cloud expansion simulation
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David Osipyan
Jul 22, 2008, 11:49:04 AM7/22/08
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Hello!
Currently I'm simulate the plasma cloud expansion using my 3D hybrid
PIC code.
Model description and some results of my code are available at
http://comphys.narod.ru/3d_cloud_v3.htm.
The simulation results are reasonable in general.
But some contraversal results http://comphys.narod.ru/m20d14.htm
turn out in case of the Ma > 10/
Especially suspicious things occur on a equatorial plane:
http://comphys.narod.ru/m20d14.htm#CloudVelocityXY
http://comphys.narod.ru/m20d14.htm#MF_XY
where the spatial anisotropy of cloud expansion is observed
Couldn't you help me to understand the reasons of such discrete
anisotropy?
Salomon Janhunen
Sep 3, 2008, 1:04:04 PM9/3/08
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On 2008-07-22, David Osipyan <osi...@gmail.com> wrote:
>
> Couldn't you help me to understand the reasons of such discrete
> anisotropy?
>
> Couldn't you help me to understand the reasons of such discrete
> anisotropy?
I think that looks like numerical dispersion. Many wave propagation
problems are plagued by it.
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