interfacial stress variation on curved boundary

tvbinu · March 7, 2017, 02:20

Hello,

I have split my two phase problem into two single phase calculations, by taking the result from first calculation as a boundary condition for the second calculation. So I need to use the shear stress (not a constant value) obtained from the first calculation as a boundary condition for a curved boundary in the second. How can I do that in FLUENT? Is it by UDF ?
Kindly help to find a way to do this.

Thanks in advance

Binu

LuckyTran · March 8, 2017, 02:31

Most problems in Fluent can be solved without UDF. At least, all of my problems were done without resorting to a UDF.

See the user's guide on how to create a "profile" in Fluent. It is a specifically formatted text file.

In the source simulation, create a profile of the shear stress and then export/save it.

In the new simulation, import the profile and then you will be able to select the profile in the boundary conditions.

March 7, 2017, 02:20	interfacial stress variation on curved boundary	#1
tvbinu New Member Binu T V Join Date: Aug 2016 Posts: 4 Rep Power: 9	Hello, I have split my two phase problem into two single phase calculations, by taking the result from first calculation as a boundary condition for the second calculation. So I need to use the shear stress (not a constant value) obtained from the first calculation as a boundary condition for a curved boundary in the second. How can I do that in FLUENT? Is it by UDF ? Kindly help to find a way to do this. Thanks in advance Binu

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March 8, 2017, 02:31		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,668 Rep Power: 65	Most problems in Fluent can be solved without UDF. At least, all of my problems were done without resorting to a UDF. See the user's guide on how to create a "profile" in Fluent. It is a specifically formatted text file. In the source simulation, create a profile of the shear stress and then export/save it. In the new simulation, import the profile and then you will be able to select the profile in the boundary conditions.