Chemical Engineering - Fluid Mechanics - Discussion

Discussion Forum : Fluid Mechanics - Section 2 (Q.No. 36)
36.
The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is
0.3
0.9
0.03
0.66
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Pogisidave said:   7 years ago
The depth of flow is not mentioned. We cannot compute the hydraulic radius w/o depth of flow.

Jeetendra Kushwaha said:   7 years ago
Hydraulic radius = √r^2/2*r= r/2.
Ratio of hydraulic radius to Dia = r/(2*2r) = 1/4 = 0.25 approax 0.3.

Surya said:   8 years ago
Can someone explain this?

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