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Need a help for velocity calculation

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Old   September 6, 2006, 00:57
Default Need a help for velocity calculation
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Le
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I would like to write a UDF function to calculate the average velocity in x direction like that: V = (v1+v2+v3...+vn)/n (for x direction) with each vi is the velocity of a each cell in x direction. Could anybody give me a clue to write this (you would be highly appriciated if write some statements by using C code for the calculation).

Thank you very much,

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