# Velocity and volume relationship

### Flow Rate and Its Relation to Velocity - Physics LibreTexts

In physics and engineering, in particular fluid dynamics and hydrometry, the volumetric flow the volumetric flow rate (also known as volume flow rate, rate of fluid flow or volume velocity) is the volume of fluid which The relation is A = An̂. The volume of the cylinder is \(Ad\) and the average velocity is The precise relationship between flow rate \(Q\) and velocity \(\overline{v}\) is. J. Neurol. Neurosurg. Psychiat., , 33, Relationship between volume flow and velocity in the cerebral circulation1. J. 0. ROWAN, A. M. HARPER.

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