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How to calculate sphericity for finding the inertial and viscous resistance ?

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Old   March 9, 2018, 03:45
Default How to calculate sphericity for finding the inertial and viscous resistance ?
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Naresh Mahendran
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Hi.

I need help to find out the inertial resistance and viscous resistance.

I'm using the below formulaes to calculate it.

RV = [ 150 (1-e)^2 ] / [ (sphericity)^2 * (Hydraulic dia)^2 * (porosity)^3 ]
RI = [ 3.5 (1-e) ] / [ (sphericity) * (Hydraulic dia) * (porosity)^3 ]

I have attached the dimensions in the image. Dimensions are 2.83*.08*49 mm

How to find hydraulic dia and sphericity ??

Thanks in advance.
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formulaes, hydrauic diameter, resistance, sphericity


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