TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

head loss [2 records]

Record 1 2016-03-11

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
  • Hydrology and Hydrography
  • Transport of Water (Water Supply)
DEF

The drop in the sum of pressure head, velocity head, and potential head between two points along the path of a flowing fluid.

CONT

What engineers call head loss or lost head is more specifically the energy lost by a unit weight of water because of surface resistance within the conduit, mechanical energy being converted into nonrecoverable heat energy.

OBS

loss of head: term standardized by the British Standards Institution (British Standard No. 4118).

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
  • Hydrologie et hydrographie
  • Adduction d'eau (Alimentation en eau)
DEF

Réduction de la charge, correspondant à l'énergie dissipée au cours de l'écoulement.

CONT

La perte de charge est une diminution de pression provoquée par la résistance à l'écoulement d'un fluide ou par perte d'énergie non convertible en travail utile.

CONT

Si le tube a une rugosité constante sur toute sa longueur, la perte de charge est proportionnelle à la longueur [...]

Spanish

Campo(s) temático(s)
  • Mecánica de fluidos e hidráulica (Física)
  • Hidrología e hidrografía
  • Transporte de agua (Abastecimiento de agua)
DEF

Disminución de la carga total, expresada en unidades de altura, debida a la disipación de energía.

Save record 1

Record 2 1986-02-24

English

Subject field(s)
  • Tort Law (common law)

French

Domaine(s)
  • Droit des délits (common law)

Spanish

Save record 2

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