Civil Engineering - Hydraulics - Discussion

Discussion Forum : Hydraulics - Section 4 (Q.No. 20)
20.
Most economical section of a circular channel for maximum velocity, is if,
depth of water = 0.810 diameter
hydraulic mean depth = 0.304 diameter
wetted perimeter = 2.245 diameters
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
5 comments Page 1 of 1.

Amar said:   7 years ago
Answer All of the above correct.

Then the discharge through a channel the maximum.

1. The depth of water=0.95d.
2. R=0.286d.
3. Perimeter=2.6 d.

The velocity through a channel circular section is max.
depth of water = 0.810 diameter.
hydraulic mean depth = 0.304 diameter.
wetted perimeter = 2.245 diameters.

Sagar said:   7 years ago
The depth of water =0.95d is for maximum discharge they ask for maximum velocity and its 0.81d.
(1)

Priya said:   7 years ago
As per my knowledge;

1. Depth of water=0.95d.
2. R=0.286d.
3. Perimeter=2.6 d.

Sanju said:   8 years ago
Highest speed at depth 0.81D.

Samantha said:   10 years ago
Should we memorize these.

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