[FLASH-USERS] Hybird-PIC in FLASH

[Mats Holmstrom]

Hello Joe,
   I wrote the hybrid PIC solver in FLASH.

I am not aware of any works that couples fluid and particles, in FLASH, 
or any other MHD solver.

What usually is done is to take the MHD E and B fields and simulate test 
particles, but that does not give any coupling between fluid and particles.

An interesting idea, but not trivial to derive the math, algorithm and 
then implement it

Regards,
Mats Holmstrom
Swedish Institute of Space Physics


On 2025-04-23 18:31, 王美乔 wrote:
> Dear FLASH Team,
> 
> I hope this message finds you well.
> 
> I am currently using FLASH for some Hybrid-PIC research. I have noticed 
> that modeling all plasma components as particles is extremely 
> computationally expensive. To address this, I am attempting to treat 
> most of the low-energy plasma as a fluid, while representing the 
> high-energy portion as particles.
> 
> However, I have encountered several difficulties with this approach. I 
> would like to ask whether anyone on the team has experience with such a 
> setup. Specifically, is it possible to simulate both fluid and 
> Hybrid-PIC particles simultaneously in FLASH and allow them to interact 
> with or drive each other? If so, are there recommended methods, modules, 
> or example cases you could share?
> 
> Thank you very much for your help and advice!
> 
> 
> Best regards,
> Joe
> University of Chinese Academy of Sciences
> 
> 
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