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
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.