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yplus value in two phase flow

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Old   September 5, 2006, 02:10
Default yplus value in two phase flow
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How is the wall y plus value computed for a two phase gas solid flow of given operating conditions of say superficial gas velocity = 10m/s and superficial solid particle velocity = 3.5 m/s of particle density = 2500 kg/m3 and particle size = 150micron

Referring to FLUENT 6.2 documentation, it is given that yplus value is computed based on y value [ distance of cell adjacent to wall] and frictional velocity

Now how is the frictional velocity computed in case of two phase flows??

Can someone cite a suitable reference if any??

Regards Naren

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