Hydraulics and Fluid Mechanics in ME
In case of an airfoil, the separation of flow occurs

any where between rear and front of body depending upon Reynolds number
midway between rear and front of body
at the extreme rear of body
at the extreme front of body

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Hydraulics and Fluid Mechanics in ME
Slip of a reciprocating pump is negative, when

Suction pipe is short and pump is running at low speeds
Suction pipe is short and delivery pipe is long and the pump is running at low speeds
Suction pipe is long and delivery pipe is short and the pump is running at high speeds
Delivery pipe is long and pump is running at high speeds

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