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How i can set slip velocity by udf

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Old   June 9, 2005, 21:34
Default How i can set slip velocity by udf
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hi, i want to set a slip velocity on the wall in fluent by using udf, can anybody tell me how to set it in fluent, as i find that there is a Specified Shear under Momentum in Wall plant. is it right??but the question is why using Shear not velocity.?
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