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# Forces on Flat Plate in Compressible Fluid Stream

## Forces on Flat Plate in Compressible Fluid Stream

(OP)
If I have a flat plate oriented normal to the fluid stream and then rotate it +/- 45deg, is the new force imparted onto the plate basically equal to F45 = L*cos(45)*Fnormal?

### RE: Forces on Flat Plate in Compressible Fluid Stream

(OP)
Oops.

I just realized that I posted this in the wrong area.

Pls forgive the error...

### RE: Forces on Flat Plate in Compressible Fluid Stream

Hi gittings00

I haven't got formula's here for a compressible fluid
but for a jet of water acting on a plate at an angle the formula is :-

F= pAV^2*(Cos (x))

where p = density of fluid

A = cross sectional area of jet

V = velocity of fluid

F = force normal to the inclined plate

hope this helps

regards

desertfox

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