Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

Discussion Forum : Hydraulics and Fluid Mechanics - Section 1 (Q.No. 6)
6.
The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy 's coefficient of friction for pipe, and l = Length of pipe )
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
36 comments Page 3 of 4.

Rajasekhar said:   9 years ago
Nozzle head = total head- loss of friction head.
For maximum efficiency, Total head H = 3 hf,
V2/2g = 2(4flv2/2gd),
V = Q/area and solving we get answer.

Ankit said:   9 years ago
@Vishal, I also have same doubt.

Vishal said:   10 years ago
How it is calculated?

Balachandran shrinivas said:   10 years ago
Please show the detailed derivation.

Siddharth J said:   10 years ago
Dimensional analysis gives the answer within seconds.

Ayyappa said:   10 years ago
First you need to know what is the maximum power transmitted through pipe and then equate it to the Bernoulli equation.

Keval said:   1 decade ago
4flv2/2gD: Series connection of pipe.

Hitesh said:   1 decade ago
There's another formula for head loss by Darcy h = 8fLQ^2/^2D^5.

But I don't understand how they have used it to get the answer. Please anyone explain.

GM BHATTI said:   1 decade ago
When delta p = f l/d v2/2g. So how can we applied Bernoulli equation?

GM BHATTI said:   1 decade ago
How please explain?


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