Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion
Discussion Forum : Hydraulics and Fluid Mechanics - Section 5 (Q.No. 7)
7.
A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is
Discussion:
11 comments Page 2 of 2.
MUHAMMAD NABI said:
4 years ago
Cc = area of jet/area of orifice
Cc = π r ^2/&pi r^2
Cc = r^2/r^2
As r = D/2.
32/2 = 16,
40/2 = 20,
Cc = 16^2/20^2.
Cc = 0.64.
Cc = π r ^2/&pi r^2
Cc = r^2/r^2
As r = D/2.
32/2 = 16,
40/2 = 20,
Cc = 16^2/20^2.
Cc = 0.64.
(1)
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