Use of mass inlet boundary condition

sar_mech · November 22, 2010, 11:39

Hi all,

I am working on a problem that is fairly a comrpessible type flow process,but still using pressure based solver (since the rate of compression is not very high),I have used Mass flow @ inlet as the B.C's and pressure as the outlet condition.

I kindly request you to let me know can i use tha above combination of the boundary conditions in a flow problem of the above nature.

thank you.

siri · November 23, 2010, 08:03

Saravana

Its a good choice so long as you know the exact values for them.

However, maybe I would have preferred the other way round - total pressure at inlet and mass flow rate at outlet, provided that information is known and of course running Fluent.

Honestly can't say what how other solvers might work

S

November 22, 2010, 11:39	Use of mass inlet boundary condition	#1
sar_mech New Member saravanakumar Join Date: Mar 2009 Location: United Kingdom Posts: 17 Rep Power: 17	Hi all, I am working on a problem that is fairly a comrpessible type flow process,but still using pressure based solver (since the rate of compression is not very high),I have used Mass flow @ inlet as the B.C's and pressure as the outlet condition. I kindly request you to let me know can i use tha above combination of the boundary conditions in a flow problem of the above nature. thank you.

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November 23, 2010, 08:03		#2
siri Member Join Date: Oct 2010 Posts: 45 Rep Power: 16	Saravana Its a good choice so long as you know the exact values for them. However, maybe I would have preferred the other way round - total pressure at inlet and mass flow rate at outlet, provided that information is known and of course running Fluent. Honestly can't say what how other solvers might work S