Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion
Discussion Forum : Hydraulics and Fluid Mechanics - Section 1 (Q.No. 45)
45.
In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta.
Discussion:
6 comments Page 1 of 1.
Raaz said:
6 years ago
@Shubham.
The discharge rate is increased due to a decrease in the pressure at vena contracta within the mouthpiece resulting in an increase in the effective head causing the flow.
The discharge rate is increased due to a decrease in the pressure at vena contracta within the mouthpiece resulting in an increase in the effective head causing the flow.
Raaz said:
6 years ago
@Shubham.
The discharge rate is increased due to a decrease in the pressure at vena contracta within the mouthpiece resulting in an increase in the effective head causing the flow.
The discharge rate is increased due to a decrease in the pressure at vena contracta within the mouthpiece resulting in an increase in the effective head causing the flow.
Sanjeev said:
8 years ago
Absolute pressure head at vena-contracta (Hvc) = atmospheric pressure head (Ha) - 0. 89* (Head available at the centre of the mouthpiece (H)).
Shubham pole said:
7 years ago
If the pressure is below atmospheric pressure then how the flow is possible from vena contracta to the atmosphere?
Prashik said:
9 years ago
Wat is Hc and Ha? @Vishwanath
Vishwanath said:
1 decade ago
Hc = Ha - 0.89 H.
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