Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion
Discussion Forum : Hydraulics and Fluid Mechanics - Section 1 (Q.No. 11)
11.
The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly enlarged to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden enlargement is
Discussion:
32 comments Page 1 of 4.
Jasim said:
6 years ago
Option C is correct.
REF:: Flow through pipe(chapter 11).
Dr.R.K. Bansal
Topics 11.4.1
REF:: Flow through pipe(chapter 11).
Dr.R.K. Bansal
Topics 11.4.1
(2)
Mahur said:
8 years ago
We know Bernoulli equation.
p1/w + v1^2/2g + Z1 = p2/w + v2^2/2g + Z2.
if p1 = p2.
Head loss Z2 - Z1 = (V1^2 - V2^2)/2g. So, OPTION D CORRECT.
p1/w + v1^2/2g + Z1 = p2/w + v2^2/2g + Z2.
if p1 = p2.
Head loss Z2 - Z1 = (V1^2 - V2^2)/2g. So, OPTION D CORRECT.
(1)
Surendra Gupta said:
8 years ago
I think D is correct answer.
Rajkotha said:
4 years ago
Sudden enlargement = (v1-v2)^2/2g.
Sudden contarction = 0.5v^2/2g.
Sudden contarction = 0.5v^2/2g.
Vishnu said:
6 years ago
Option C is correct.
Head loss due to sudden enlargement,
h = V1^2(1-A1/A2)^2 /2g.
And we know A1V1=A2V2,
Applying this on the first equation will give the correct answer (i.e. C).
Head loss due to sudden enlargement,
h = V1^2(1-A1/A2)^2 /2g.
And we know A1V1=A2V2,
Applying this on the first equation will give the correct answer (i.e. C).
Vishal said:
7 years ago
D is the right option.
Afzal said:
7 years ago
Option D should be the right answer.
Fabre said:
7 years ago
Option C is the correct answer. I agree with the given answer.
Varun said:
7 years ago
@Niranjan.
Fine momentum is taken into account but please explain it in brief.
Fine momentum is taken into account but please explain it in brief.
PRANAB JYOTI DUTTA said:
7 years ago
The answer should be D.
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