alpha becomes bigger than 1 in interFoam

ata · February 27, 2011, 06:09

Dear FOAMers
I have a problem with interFoam. I am simulating a 2-D channel with 1 inlet and 1 outlet. alpha is 1 at inlet. When I use fixed velocity at inlet every thing is OK but when I change the BC at inlet to fixed pressure the alpha becomes bigger and bigger. (bigger than 1)
What is the problem? Could any one help me?
Any help will be appreciated
Best regards

Ata

miotto · March 21, 2020, 15:49

It is 2020, but if you somehow landed on this question, take a look at this thread here:

Question about alpha.water in interFoam

February 27, 2011, 06:09	alpha becomes bigger than 1 in interFoam	#1
ata Senior Member ata kamyabi Join Date: Aug 2009 Location: Kerman Posts: 323 Rep Power: 18	Dear FOAMers I have a problem with interFoam. I am simulating a 2-D channel with 1 inlet and 1 outlet. alpha is 1 at inlet. When I use fixed velocity at inlet every thing is OK but when I change the BC at inlet to fixed pressure the alpha becomes bigger and bigger. (bigger than 1) What is the problem? Could any one help me? Any help will be appreciated Best regards Ata

March 21, 2020, 15:49		#2
miotto Member Gui Miotto Join Date: Feb 2020 Posts: 30 Rep Power: 6	It is 2020, but if you somehow landed on this question, take a look at this thread here: Question about alpha.water in interFoam Raphael_Santos, Stan Zhou and redTo like this.

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