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Gas flow through capillary

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Old   January 19, 2015, 05:35
Default Gas flow through capillary
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Hi, I am a newbie in flow dynamics simulation. I am currently working on a CFD problem:

A glass capillary was inserted between atmosphere and vacuum chamber. The chamber is pumped and the pressure is maintained at several millibars. The inner diameter of the capillary is ~0.5mm.

I would like to solve speed field of the inside of capillary, and inlet and outlet region of the capillary. And also want to estimate pressure inside the capillary.

As a beginner in the field, I have no idea how to solve the problem. The only thing I can solve is I have estimated the flow inside the capillary is laminar flow.

Would any one help me on the problem?

Thanks.

--Toyonline
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