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superficial velocity

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Old   April 28, 2009, 06:52
Default superficial velocity
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hello,

i have a simulation with different fluids in a pipe. when i use the post processor i can choose the variable fluid1.velocity for one of the fluids. for the other 3 fluids there is only. fluid2.superficial velocity. i found the definition

The Fluid.Volume Fraction multiplied by the Fluid.Velocity.


But why canīt I choose the "normal" velocity? if i want the average velocity do i devide the avesuperficial velocity by the ave fluidvolume fraction?


thanks.
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