Hydraulics & Fluid Mechanics
The line of action of the buoyant force acts through the centroid of the

displaced volume of the fluid
volume of the fluid vertically above the body
submerged body
volume of the floating body

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Hydraulics & Fluid Mechanics
The normal stress is same in all directions at a point in a fluid

irrespective of the motion of one fluid layer relative to an adjacent layer
only when the fluid is frictionless
When there is no motion of one fluid layer relative to an adjacent layer
only when the fluid is incompressible and has zero viscosity

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Hydraulics & Fluid Mechanics
According to Bernoulli’s equation for steady ideal fluid flow

total energy is constant throughout
principle of conservation of mass holds
velocity and pressure are inversely proportional
the energy is constant along a stream-line but may vary across streamlines

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