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 4 of 4.
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.
Ballamudi mounica said:
1 decade ago
We know the Bernoulli's equation.
From that we obtain,
p1/wg+v1^2/2g+z1 = p2/wg+v2^2/2g+z2.
z1=z2 from this we get,
p1/wg-p2/wg = v1^2/2g-v2^2/2g.
= (v1-v2)^2/2g.
Which is loss of head bcoz p1-p2/wg=H where h=head loss
and wg=row.
From that we obtain,
p1/wg+v1^2/2g+z1 = p2/wg+v2^2/2g+z2.
z1=z2 from this we get,
p1/wg-p2/wg = v1^2/2g-v2^2/2g.
= (v1-v2)^2/2g.
Which is loss of head bcoz p1-p2/wg=H where h=head loss
and wg=row.
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