[FLASH-USERS] Altering Velocity Causes Anomalous Pressure

Tomasz Plewa tplewa at fsu.edu
Wed Sep 17 08:50:27 EDT 2008


James -

At the very least you need to update the total gas energy.

Tomek
--
James Guillochon wrote:
> Hi everyone,
>
> I am altering the velocity of a couple of grid squares in my simulation 
> in the Driver_sourceTerms function at each time step, and after a couple 
> hundred steps I end up with a grid cell or two with a ridiculously high 
> pressure/density, which causes the Helmholtz EOS routine to not 
> converge. I was wondering if there are any other variables I should be 
> altering when I give these grid cells their new velocities? Or if there 
> is a better place in Flash to be adjusting the velocities than the 
> Driver_sourceTerms routine?
>
> Thanks!
>
> - James
>   
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