Fluid flow in a pipe
Determination of fluid flow rate using the velocity-area method
Quizzed article REF: R2210 V4
Fluid flow in a pipe
Determination of fluid flow rate using the velocity-area method

Authors : Jérôme LE COZ, Isabelle CARÉ

Publication date: September 10, 2017, Review date: June 14, 2021 | Lire en français

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3. Fluid flow in a pipe

3.1 Measurement execution

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3.1.1 Choice of measuring section

As in the case of free-surface flow, the measurement cross-section must be such that the velocity profile is regular, without excessive turbulence or rotation. As far as possible, the chosen location should therefore satisfy the following conditions:

  • be located in the longest straight section available, far downstream of any singularities (elbow, valve, etc.); it is generally accepted that the straight lengths...

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