constant pressure gradient

June 27, 2005, 07:41

I have some analytical solutions I want to compare with Fluent solutions. The first case is a simple channel with mass flow inlet and outflow outlet. How do I specify a constant pressure gradient through the channel for this case?

Trond G.

miniar · November 14, 2012, 07:03

I have the same problem also and i don't know what i happen

LuckyTran · November 14, 2012, 12:40

You cannot specify both mass flow and pressure gradient, too many boundary conditions. You can only specify one or the other.

Are you guys trying to simulate fully developed flow?

June 27, 2005, 07:41	constant pressure gradient	#1
Trond Guest Posts: n/a	I have some analytical solutions I want to compare with Fluent solutions. The first case is a simple channel with mass flow inlet and outflow outlet. How do I specify a constant pressure gradient through the channel for this case? Trond G.

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November 14, 2012, 07:03		#2
miniar New Member ines Join Date: Nov 2012 Posts: 2 Rep Power: 0	I have the same problem also and i don't know what i happen

November 14, 2012, 12:40		#3
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,754 Rep Power: 66	You cannot specify both mass flow and pressure gradient, too many boundary conditions. You can only specify one or the other. Are you guys trying to simulate fully developed flow?