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-   -   Time dependant discharge from a closed volume (https://www.cfd-online.com/Forums/fluent/30473-time-dependant-discharge-closed-volume.html)

Chris Rand November 6, 2002 14:56

Time dependant discharge from a closed volume
 
Hello all,

I'm in need of some guidance. I need to model the discharge from a pressure vessel through a valve. I am particulary interested in the change in flow rate over time, and the time to fully discharge. My main problem is in defining the boundary conditions of the pressure vessel.

I thank you for your time, and look forward to any ideas.

CR

Boris November 7, 2002 20:51

Re: Time dependant discharge from a closed volume
 
maybe you can have a try like this: define the pressure vessel as a separate volume in Gambit, and initialize it in Fluent with pressure,etc (you may use patching to initialize the specific volume. Hope it helps.

Chris Rand November 8, 2002 08:44

Re: Time dependant discharge from a closed volume
 
Thanks for the reply,

Since posting my original message I have woken up! Hadn't used fluent for a while and forgot some real basics. Thanks again,

Chris


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