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A submarine moves through water at 30 f
t/s.At a point A on the submarine
5 ft above the nose,the velocity o
f the submarine relative to the wa
ter is 50 ft/s.Determine the dynam
ic-pressure difference between thi
s point and the nose,and determine
the difference in total pressure
between the two points.
If the submarine is sationary and the w
ater is movinf past it,The velocit
y at the nose is zero and the velo
city at A is 50ft/s.By selecting t
he dynamic pressure at infinity as
zero
Hence dynamic pressure difference betwe
en point A and nose is=
- 2418.75
lb/ft^2
Hence total pressure difference between
point A and nose is=
- 2730.0334
lb/ft^2
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