Time dependent source

CZKuba961 · February 2, 2023, 09:19

Hi,
I´m doing a transient thermal simulation in Ansys Fluent. I have a heat source (20W) and I want to set up that after certain time (10 minutes) the heat source will stop but the calculation will continue so I can watch the cooling. Does anybody know how to make it?

Thank you.

sbaffini · February 2, 2023, 14:33

There are several ways. From just stopping the simulation and restarting it at the proper time without the source, to an expression with a simple if-else condition to, finally, an udf (with an analogous if condition)

CZKuba961 · February 4, 2023, 09:59

Thank you.

I will try that after I manage to set up proper solution. It does not work for me right now.

February 2, 2023, 09:19	Time dependent source	#1
CZKuba961 New Member Jakub Rajnošek Join Date: Aug 2022 Posts: 6 Rep Power: 3	Hi, I´m doing a transient thermal simulation in Ansys Fluent. I have a heat source (20W) and I want to set up that after certain time (10 minutes) the heat source will stop but the calculation will continue so I can watch the cooling. Does anybody know how to make it? Thank you.

February 2, 2023, 14:33		#2
sbaffini Senior Member Paolo Lampitella Join Date: Mar 2009 Location: Italy Posts: 2,156 Blog Entries: 29 Rep Power: 39	There are several ways. From just stopping the simulation and restarting it at the proper time without the source, to an expression with a simple if-else condition to, finally, an udf (with an analogous if condition) CZKuba961 likes this.

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February 4, 2023, 09:59		#3
CZKuba961 New Member Jakub Rajnošek Join Date: Aug 2022 Posts: 6 Rep Power: 3	Thank you. I will try that after I manage to set up proper solution. It does not work for me right now.