Velocity is max in the center going to zero at the walls. The profile will depend on if its laminar (parabolic) or a blunted parabola in transition flow, to nearly a flat face parabola in fully turbulent flow.
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"Pumping accounts for 20% of the world’s energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies)
