TERMIUM Plus®

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WETTED PERIMETER [1 record]

Record 1 1998-08-10

English

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

The wetted boundary of an open channel at a specified section [standardized by ISO].

CONT

The model used to estimate downstream pollutant concentration is based on an idealized rectangular channel of width (W) and depth (d). The hydraulic radius (r) for the channel is required in order to estimate the turbulent diffusion coefficient (E). The hydraulic radius is defined as the stream cross-sectional area (a) divided by the wetted perimeter (P).

OBS

wetted perimeter: standardized by ISO.

French

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

Partie mouillée du périmètre dans une section droite d'un chenal [normalisée par l'ISO].

DEF

Longueur de la paroi d'un canal ou d'une conduite en contact avec le fluide, mesurée dans un plan perpendiculaire à la direction de l'écoulement. Le périmètre mouillé sert au calcul du rayon hydraulique.

OBS

périmètre mouillé : normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Mecánica de fluidos e hidráulica (Física)
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