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
Two dimensional flows occurs when

The direction and magnitude of the velocity at all points are identical
The magnitude and direction of the velocity do not change from point to point in the fluid
The velocity of successive fluid particles, at any point, is the same at successive periods of time
The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

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