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Old   December 1, 2020, 10:17
Default Transient pressure boundary condition
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Sesh
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Dear all,

I have a pressure inlet whose values change (descend) with respect to time and after some time (say after 3 seconds) it completely stops which means there is no flow, but I have to continue the simulation to check the scales of heat transfer until time 10sec.

How to implement this in the fluent?

The case is 2D.

thank you in advance.
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Old   December 2, 2020, 02:40
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Troy Snyder
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Quote:
Originally Posted by virothi View Post
Dear all,

I have a pressure inlet whose values change (descend) with respect to time and after some time (say after 3 seconds) it completely stops which means there is no flow, but I have to continue the simulation to check the scales of heat transfer until time 10sec.

How to implement this in the fluent?

The case is 2D.

thank you in advance.

You can set a time-varying bc using a UDF in ANSYS Fluent.


E.g.


https://www.afs.enea.it/project/nept.../tg/node69.htm
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Old   December 2, 2020, 04:38
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Thank you, I've solved it.
Quote:
Originally Posted by tas38 View Post
You can set a time-varying bc using a UDF in ANSYS Fluent.


E.g.


https://www.afs.enea.it/project/nept.../tg/node69.htm
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