TERMIUM Plus®

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DIFFERENCE PRESSIONS [1 record]

Record 1 2014-04-04

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
CONT

... orifice or Venturi flow meters ... measure the pressure difference between a low-speed fluid in an approach pipe and the high-speed fluid at the smaller orifice diameter to determine flow velocities and thus to meter the flow rate.

OBS

pressure difference: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
DEF

La différence dans la pression entre deux points dans un système due aux différences dans l'altitude et/ou la chute de pression due à l'écoulement.

CONT

Lorsqu'un fluide s'écoule dans le venturi 1, les pressions statiques dans les différentes sections du venturi prennent des valeurs différentes. Il est possible d'évaluer l'écart de pression entre deux sections S1 et S2 en utilisant le théorème de Bernoulli [...]

OBS

écart de pressions : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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