Restricting pressure like density
 

we can limit density as below:
I know its possible for p too.but how?is this notation correct?
to someones that its important to them.I've tested it!
but no effect on problem seemed.means no limitation is done.whats the correct keywords?

But have you also changed the source code/solver? Or have you merely but some extract information in a dictionary?

If you have not done the former, obviously it will not have any effect what so ever.

Kind regards,

Niels

ok.thus solver codes must be changed.what do you mean by second sentence you said? do you or someone know which compressible solvers have this feature to use directly or i can use them as a pattern to modify sonicFoam solver?

ok.thus solver codes must be changed.what do you mean by second sentence you said? do you or someone know which compressible solvers have this feature to use directly or i can use them as a pattern to modify sonicFoam solver?

Hi

I have looked into sonicFoam, and it does not look like sonicFoam is even utilising the rhoMax/rhoMin values.

With respect to the second sentence, what I mean is that you can give all the variables you want, however, if the code does not know to look for the variables, they are not used for anything; or even read for that matter.

Good luck,

Niels

yes you are correct! but rhoPimpleFoam has limitations on density.do you know is there any solver that use limitation on pressure or velocity?

Hi Ehsan,

No, I do not know of any such solver. Also, I find it a bit troubling to have to do that, because it will be in direct violation of the pressure-velocity couple/continuity fulfilment; at least if it is done as a explicit correction.

/ Niels