[FLASH-USERS] Problem with pressure matching in HEDP simulation

[Steffen Sander]

Hello all,

I'm relatively new in using the FLASH code and am trying to set up a 
simulation comparable to the Laser Slab example.
However, when changing the material properties, the different regions 
start to rarefy at their respective borders. This is probably due to the 
high pressure difference between the thin gas (vacuum) and the target 
region.

Does anybody has experience on modifying the initial conditions such 
that the pressure is better matched. Alternatively, is it possible to 
toggle material mixing or general hydro processes with a temperature 
switch, i.e. defining a lower limit for which the material is kept at 
initial conditions?

Thank you!

Steffen Sander