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Flow velocity in a cross-section

The flow velocity (v) in a cross-section is the volumetrically averaged flow velocity in a specific flow cross-section (e. g. a pipe cross-section).

The unit of measurement for flow velocity is m/s.

Flow velocity

Q      Flow rate in m3/h

A       Cross-selectional area in m2

This relationship produces standard reference values for determining the flow velocity in piping (see Piping).

Flow velocity in a cross-section