Hydraulics and Fluid Mechanics in ME
If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water , the horse power required will be

1.5 B.H.P
Same
H.P./0.75
0.75 B.H.P

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Hydraulics and Fluid Mechanics in ME
When an ideal fluid flows past a sphere

total drag is zero
lowest pressure intensity occurs at front stagnation point
highest intensity of pressure occurs around the circumference at right angles to flow
lowest pressure intensity occurs at rear stagnation point

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