Hydraulics and Fluid Mechanics in ME
The discharge through a wholly drowned orifice is given by (where H1 = Height of water (on the upstream side) above the top of the orifice, H2 = Height of water (on the downstream side) above the bottom of the orifice, and H = Difference between two water levels on either side of the orifice)

Q = Cd × bH × √(2gh)
Q = Cd × bH2 × √(2gh)
Q = Cd × bH₁ × √(2gh)
Q = Cd × b (H2 - H1) × √(2gh)

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Hydraulics and Fluid Mechanics in ME
In a forced vortex motion, the velocity of flow is

directly proportional to its radial distance from axis of rotation
inversely proportional to the square of its radial distance from the axis of rotation
inversely proportional to its radial distance from the axis of rotation
directly proportional to the square of its radial distance from the axis of rotation

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Hydraulics and Fluid Mechanics in ME
The meatcentric height is the distance between the

Original centre of buoyancy and new centre of buoyancy
Centre of gravity of the floating body and the metacentre
Centre of gravity of the floating body and the centre of buoyancy
Metacentre and centre of buoyancy

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