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Velocity in a pipe 
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#1
Aug2714, 02:51 PM

P: 6

I need to find the velocity within a pipe , I know the flow rate and diameter
Flow rate =0.01 Diameter =90mm Am I correct in thinking to use V =Q/A Where A is found using A=pi/4 x D^2 Using this I got A =0.0064m but somehow this does not seem quite right to me Can anybody please tell me where I am going wrong please Thanks 


#2
Aug2714, 03:08 PM

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P: 6,727

Please include units for all quantities. How else can we tell what these numbers mean?



#3
Aug2714, 03:27 PM

P: 6

0.01m3 s1



#4
Aug2714, 08:14 PM

P: 88

Velocity in a pipe



#5
Aug2714, 08:38 PM

P: 6

Ah so it should be m^2 ?



#6
Sep114, 12:04 AM

P: 20

What are the units for your flow rate?
And also, Your equation for area includes the term D^2 which implies the diameter is being squared, so your answer for area should have the units mm^2. 


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