Spherical particles of density 2000 kg/m3 and in the size range 20– 100 mm are fed continuously into a stream of water (density, 1000 kg/m3 and viscosity, 0.001 Pa s) flowing upwards in a vertical, large diameter pipe. You would like the velocity of the water be such that no particles greater than 50 mm are carried upward with the water. Determine the:   a) maximum velocity of the water in m/s (Correct Answer: 1.218) b) if the water velocity was 85 % of the maximum, what diameter (mm) particles will be 100 % retained with the underflow? (Correct Answer: 36.13) I need help with how to get the answers please.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Spherical particles of density 2000 kg/m3 and in the size range 20– 100 mm are fed continuously into a stream of water (density, 1000 kg/m3 and viscosity, 0.001 Pa s) flowing upwards in a vertical, large diameter pipe. You would like the velocity of the water be such that no particles greater than 50 mm are carried upward with the water. Determine the:

 

a) maximum velocity of the water in m/s (Correct Answer: 1.218)

b) if the water velocity was 85 % of the maximum, what diameter (mm) particles will be 100 % retained with the underflow? (Correct Answer: 36.13)

I need help with how to get the answers please.

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