[FLASH-USERS] Is the ​implicit magnetic diffusion solver can be used for axial magnetic field in FLASH4.7

[Hansen, Eddie]

Hi Zhang,

The ZPinch example problem is not specific to any experiment, so a general Z-pinch only requires an azimuthal field. That being said, FLASH 4.7 does indeed support the implicit diffusion of an axial field but only for uniform grid setups (+ug). We are actively working on implementing AMR support for future releases.

--
Eddie Hansen
Research Scientist
Flash Center for Computational Science


From: flash-users <flash-users-bounces at flash.rochester.edu> on behalf of Zhang Daoyuan <zdy0903 at stu.xjtu.edu.cn>
Date: Tuesday, February 28, 2023 at 9:08 AM
To: flash-users at flash.rochester.edu <flash-users at flash.rochester.edu>
Subject: [FLASH-USERS] Is the ​implicit magnetic diffusion solver can be used for axial magnetic field in FLASH4.7

Dear Flash Developers,



Thank you for the release of FLASH4.7. I want to ask if the newly added implicit magnetic diffusion solver can be used for axial magnetic field in R-Z 2D simulation. When I look at the "Zpinch" simulation example, I find that the axial magnetic field is not initialized. This is weird because I believe the "Zpinch" case is actually an example of MagLIF experiment. It should have axial magnetic field.

Can we use the axial magnetic field in Zpinch simulation? Thank you very much!



Yours

Zhang


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