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PackedSpheres_ND

 

 

The function PackedSpheres_ND(Re: f,j_H) returns the friction factor (f), and Colburn j factor (j_H) for a well packed sphere matrix.

 

Inputs:

 Re - reynolds number defined as follows:

          

 where,

          

                 

                and p is the porosity

 

Ouputs:

 f - friction factor [-]

 j_H - Colburn j factor defined as follows:

           

 where,

          

 

Example:

Re=2000 [-]

call PackedSpheres_ND(Re: f,j_H) 

 

{Solution:

f=0.4586 

j_H=0.02352 

}

 

Notes: This function is called by SpheresPacking to determine the friction factor and Colburn j factor.  The data are based on experimental results found in Kays and London (1984) and also reported by Ackermann (1997)

 

 

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