Re: dynamic of pressure
I have doing like this.
It is not an instability!
My simulation didn’t realise the time changement of state : when we open the valve we obtain a step changement of pressure. This is not realistic value. When opening the valve pressure seem change immediatly…
We measure it on a real system : the time changement is about 0.15s this is not immediatly change.
I use BGK to calculate but maybe I do use MRT to avoid this phenomen ?