[FLASH-USERS] Magnetic pressure in USM

[Seyit Hocuk]

Dear users, supporters,

I was wondering how the magnetic pressure is calculated with the 
FLASH4-a USM scheme. Normally, P_mag (=magp) = B^2 / 8 pi. However, it 
seems from the FLASH user's guide, as well as from my preliminary 
results, that the returned magnetic pressure is calculated as B^2 / 2 
(non-dimensional form). If so, this messes with my beta parameter, which 
is P_thermal / P_magnetic.

In order to correct for this, I was thinking of changing my initialized 
B value, such that B* = B/(4pi)^0.5. Am I correct in my reasoning?

Kind regards,
Seyit