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-   -   how can i set this outlet boudary conditon? (http://www.cfd-online.com/Forums/fluent/101773-how-can-i-set-outlet-boudary-conditon.html)

Guava Wang May 14, 2012 03:43

how can i set this outlet boudary conditon?
 
Dear all,

for my case, the inlet pressure and mass flow is know, and my propositon is to get the pressure loss during the fluid flow. there are four outlets in this case.
how can i set the boudary condition? please give me some suggestion.


thank you in advance.

best regards,
Guava Wang

norger May 14, 2012 05:14

e.g. velocity outlet with 0 m/s

Guava Wang May 14, 2012 23:43

Quote:

Originally Posted by norger (Post 360909)
e.g. velocity outlet with 0 m/s

that's good idea. thank you

moun139 May 29, 2012 08:59

hi ,
i want to set velocity outlet besides outflow in fluent ,how can i do it ?
thx

Guava Wang May 29, 2012 21:31

Quote:

Originally Posted by moun139 (Post 363577)
hi ,
i want to set velocity outlet besides outflow in fluent ,how can i do it ?
thx

the outlet is given the velocity inlet boundary condition, and for the negative magnitude. hope that helps.

Best
Guava

delaneyluke May 30, 2012 05:04

Guava,
You can use the mass flow inlet BC at the outlet, and specify direction of flow as "Outward Normal"

Regards
Luke


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