Question
Download Solution PDFThe ratio of the actual discharge from an orifice to the theoretical discharge from the orifice, is known as
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Co-efficient of contraction (Cc):
- It is defined as the ratio of the area of the jet at vena-contracta to the area of the orifice.
\(C_{c}=\frac{A_{c}}{A}\)
Coefficient of velocity (Cv):
- It is defined as the ratio between the actual velocity of a jet of liquid at vena contracta and the theoretical velocity of jet. It is denoted by Cv.
\(C_{v}=\frac{V}{\sqrt{2gH}}\)
The value of Cv varies from 0.95 to 0.99.
Co-efficient of Discharge (Cd):
- It is defined as the ratio of the actual discharge from an orifice to the theoretical discharge from the orifice.
\(C_{d}=\frac{V_{act}}{V_{th}}\)
By the relation
Cd = Cc x Cv
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