Hydraulics and Fluid Mechanics in ME
In an immersed body, center of pressure is

below be center of gravity
at the center of gravity
could be above or below e.g. depending on density of body and liquid
above the center of gravity

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Hydraulics and Fluid Mechanics in ME
Coefficient of resistance is the ratio of

Actual discharge through an orifice to the theoretical discharge
Loss of head in the orifice to the head of water available at the exit of the orifice
Actual velocity of jet at vena-contracta to the theoretical velocity
Area of jet at vena-contracta to the area of orifice

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Hydraulics and Fluid Mechanics in ME
A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if

Diameter of both the pipes is same
Loss of head and discharge of both the pipes is same
Length of both the pipes is same
Loss of head and velocity of flow in both the pipes is same

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