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December 12, 2017 at 11:52 am
helena_mel
SubscriberHey,
i`m worlking with ansys fluent version 17.2 and simulate a transient velocity profile at the inlet. I have writing a udf with a backflow. It has worked perfectly in August. But now fluent isn`t calculating the negative velocity.
Has anyone the same problem?
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December 16, 2017 at 11:31 pm
Raef.Kobeissi
SubscriberAn inlet boundary condition as a backflow?! Usually outlet boundary condition supports backflow but I’ve never seen an inlet BC where flow is exitIng rather than entering. Could you please explain your case a little but more.
Cheers -
December 18, 2017 at 11:44 am
José Mantovani
SubscriberLike Kobeissi, I've never seen reverse flow in the input, instead of using UDF, try to change the BC or impute the "velocity inlet" into components, and change for a negative velocity.
Hugs.
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