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How to loop outlet data back to inlet ?

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Old   August 23, 2010, 04:30
Default How to loop outlet data back to inlet ?
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Toby Cheung
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Hi all,

Before stated out my question, please take a look to following video:

According to the video, there are some particles flowing inside a box with a electric fan. The fan is defined by two simple faces (velocity inlet and pressure outlet).

My aim, to this simulation, is to determine the particle density in different location within the box. However, the problem is, the particles just continuously escaping through the "outlet".

I wish I could loop the escaped particle back to the inlet and then continue the flow. I think it may require some UDF setting to do so... yet I am not capable to achieve this by myself (a programming idiot).

May I have some constructive feedbacks or suggestions from all of you, fluent experts, in helping me to improve this simulation?
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