Civil Engineering - Hydraulics - Discussion
Discussion Forum : Hydraulics - Section 1 (Q.No. 26)
26.
While applying the Bernoulli's equation 
= total head, the work any section done on the flow system, if any
= total head, the work any section done on the flow system, if anyDiscussion:
9 comments Page 1 of 1.
Nilraj said:
7 years ago
@All.
In question- work done on flow system means increases energy which should be added to the left side.
If work done by the flow means a decrease in energy which should be added to the right side.
So the answer is correct.
In question- work done on flow system means increases energy which should be added to the left side.
If work done by the flow means a decrease in energy which should be added to the right side.
So the answer is correct.
(8)
Magnus Hwosafe said:
1 decade ago
I think the answer to this question is wrong, because, Bernoulli's equation represents conservation of energy. When a fluid does work, it is usually accompanied with some loss of energy which should be added to the right side of the equation.
Dhiraj bhise said:
1 decade ago
Yes, I am also agree with you @Magnus Hwosafe.
Rahul said:
10 years ago
It is added to the left side of the equation because work done is to increase the head, and it is subtracted if it has losses.
Ramavtar said:
8 years ago
@Rahul,
Work done is output plus and head loss minus.
Work done is output plus and head loss minus.
Rahul gupta said:
8 years ago
Correct answer is A it is added in the right side of the equation, because it is based on the conservation of energy.
Pawan said:
7 years ago
I think the Answer is right because work is done on 'any section' needed energy so it (lost energy) must be added to the 'any section's side. It does not depend upon it is written on right side or left.
Jeevan said:
7 years ago
Well said @Nilraj.
NNABIINN said:
4 years ago
Thank you for explaining the answer @Nilraj.
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