[FLASH-USERS] Where to find 3T unsplit MHD equations in cylindrical geometry for Z-pinch simulation?

[Reyes, Adam]

Hi Jiale,

The 3T extension is described in this section of the users guide: https://flash.rochester.edu/site/flashcode/user_support/flash4_ug_4p7/node99.html

Cylindrical coordinates will introduce some geometric source terms from the vector calculus operators. There is nothing special about Z-pinch cases except that it uses magnetic diffusion to bring in a magnetic field from a current boundary condition determined from Ampere’s Law.
*********************************************
Adam Reyes


Code Group Leader, Flash Center for Computational Science  
Research Scientist, Dept. of Physics and Astronomy
University of Rochester
River Campus: Bausch and Lomb Hall, 369  
500 Wilson Blvd. PO Box 270171, Rochester, NY 14627
Email adam.reyes at rochester.edu
Web https://flash.rochester.edu
 (he / him / his)


*********************************************



> On Apr 1, 2024, at 4:11 PM, Jiale Zheng <zhengjl1103 at shu.edu.cn> wrote:
> 
> Hi all,
> 
> I cannot find  3T unsplit MHD equations in cylindrical geometry for Z-pinch cases in FLASH User’s Guide. And I am writing this email to ask relevant information about these equations.    
> 
> I am looking forward to your reply.
> 
> Best regards,
> 
> Jiale
> 
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> 
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