A fluid of density ρ circulates around a central point
such that the velocity, V , at any distance...

Question

A fluid of density ρ circulates around a central point
such that the velocity, V , at any distance r from the central point is given
by 



where C is a constant. The pressure is equal to p0 at a
distance r0 from the central point. Determine an expression for the pressure
distribution in any horizontal plane in terms of r, where C, p0, r0 are
parameters of the pressure distribution.

Banasree · Accepted Answer

Ans.  Given data condition is known as form drag and wakes.
Form drag is due to pressure change only. Drag co efficient C 
C = Drag force/dynamic pressure x projected area
C = 2R/ρv0^2 x projected area
Generally,

A fluid of density ρ circulates around a central point such that the velocity, V , at any distance r from the central point is given by where C is a constant. The pressure is equal to p0 at a distance...

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