run 3 fluent cases

parradux · January 8, 2014, 11:47

Hi,

I have a fluent case where I would like to change the velocity inlet value to three different flow fluids. Each flow takes on average 3-4 hours to solve, therefore I would like to know if there is a way to set the flow rate to change automatically in fluent after a prescribed number of timesteps.

i.e.

1 m/s for 15 seconds
3 m/s for 25 seconds
6 m/s for 65 seconds

How can I accomplish this?

bharath · January 9, 2014, 06:16

Hi parradux,
You can use some UDF for this type of BC setup.

parradux · January 9, 2014, 13:08

Im not to familiar with programming udfs. Can you please provide an example/template that I could modify to suit my needs?

Thank you,

January 8, 2014, 11:47	run 3 fluent cases	#1
parradux New Member asdasdasd Join Date: Aug 2012 Posts: 15 Rep Power: 13	Hi, I have a fluent case where I would like to change the velocity inlet value to three different flow fluids. Each flow takes on average 3-4 hours to solve, therefore I would like to know if there is a way to set the flow rate to change automatically in fluent after a prescribed number of timesteps. i.e. 1 m/s for 15 seconds 3 m/s for 25 seconds 6 m/s for 65 seconds How can I accomplish this?

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January 9, 2014, 06:16		#2
bharath Senior Member Bharath kumar Join Date: Apr 2009 Posts: 169 Rep Power: 17	Hi parradux, You can use some UDF for this type of BC setup.

January 9, 2014, 13:08		#3
parradux New Member asdasdasd Join Date: Aug 2012 Posts: 15 Rep Power: 13	Im not to familiar with programming udfs. Can you please provide an example/template that I could modify to suit my needs? Thank you,