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 3 of 4.
                
                        ANKIT GUPTA said: 
                         
                        9 years ago
                
                Here the answer should be D.
                
                        Satyam Singh said: 
                         
                        9 years ago
                
                The given answer C is correct as momentum is also considered.
                
                        Satyam singh said: 
                         
                        9 years ago
                
                Can some explain how answer C is correct?
                
                        Rvv said: 
                         
                        9 years ago
                
                Yes, agree D is correct answer.
                
                        Sthitadhi Ghosh said: 
                         
                        9 years ago
                
                Option D is the correct answer.
                
                        Piyush Rathore said: 
                         
                        9 years ago
                
                D is the correct option. I am damn sure about it.
                
                        Nitesh kumar mishra said: 
                         
                        9 years ago
                
                I am sure, that option "D" should be the correct answer.
                
                        Leena 2016 said: 
                         
                        9 years ago
                
                Option D should be the answer.
                
                        MD MOBIN ALAM said: 
                         
                        1 decade ago
                
                Minor losses due to sudden expansion By bernoulli's eq.
h=(v1^ 2-v2^2/2g)-(p1-p2/$g).
And by momentum eq,
(p1-p2/$g)=v2(v2-v1)/g and put the value in above eq,
Then,
h=(v1-v2)^2/2g.
                h=(v1^ 2-v2^2/2g)-(p1-p2/$g).
And by momentum eq,
(p1-p2/$g)=v2(v2-v1)/g and put the value in above eq,
Then,
h=(v1-v2)^2/2g.
                        Anup Kumar said: 
                         
                        1 decade ago
                
                I Think that Answer is D.
Becoz according to Bernoulli's Equation.
H = P1/wg-p2/wg = (v1^2-v2^2)/2g.
                Becoz according to Bernoulli's Equation.
H = P1/wg-p2/wg = (v1^2-v2^2)/2g.
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