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parradux January 8, 2014 12:47

run 3 fluent cases

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.


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 07:16

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

parradux January 9, 2014 14:08

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

Thank you,

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