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Fluid Pressure

Fluid Pressure

Fluid Pressure

(OP)
Can someone help me remember how to calculate a pressure from a velocity of water?  I have a pump in a river that flows at 10 feet/sec.  I need to calculate the pressure the water exerts on the pump to design the anchorage.

Any help would really be appreciated.

Thanks!

RE: Fluid Pressure

F=1/2 rho v^2 A C
Pressure = 1/2 rho V^2 C

F= force from current
rho= density of water (not pcf, divide by gravity first)
v= velocity of water
A= X-section area of the pump
C= Drag coefficient.

C for a car is about .45.  Maybe use high number like .7 or something.

http://www.krmconsultants.com

RE: Fluid Pressure

(OP)
Thanks a lot for the quick response!

RE: Fluid Pressure

i got 96 with C=1.  I assumed the pump is like a flat plate.  Dont take anything for granted K.  I have been out of school kind of long and I dont encounter this equation when I design a house smile  

http://www.krmconsultants.com

RE: Fluid Pressure

(OP)
I checked with an hydraulics engineer in house and I got the same equation.  I came up with 96.89 psf.  Good job!

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