Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

7. 

When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

[A]. 0.5 a2gH
[B]. 0.707 a2gH
[C]. 0.855 a2gH
[D]. a2gH

Answer: Option A

Explanation:

No answer description available for this question.

Daka said: (Aug 12, 2016)  
I think it is 0.707 a√2gH for conversion Mouthpiece.

Pradeep said: (Apr 7, 2017)  
Option A is correct.

The discharge Running full then option B is correct.

Balu said: (Aug 23, 2017)  
Usual value of Cd is 0.855.
Running free - - Cd is 0.5.
Running full - - Cd is 0.707.

Pan said: (Jan 10, 2018)  
Thanks @Balu.

Sudhakar Gowda said: (Aug 10, 2019)  
Thanks @BALU.

Velmurugan R said: (Aug 29, 2019)  
External mouthpiece Cd = 0.855.
Internal (Running full) = 0.707.
Internal (Running free) = 0.5.
Vena-Contracta = 1.

Rhishikesh said: (Apr 1, 2020)  
Thanks @Velmurugan R.

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