TERMIUM Plus®

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VISCOSIDAD ABSOLUTA [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2013-07-22

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Fluid Mechanics and Hydraulics (Physics)
  • Rheology
DEF

The absolute viscosity of a fluid divided by the density of the fluid at the temperature of the viscosity measurement.

CONT

The dimensions of kinematic viscosity are area divided by time; the appropriate units are metre squared per second.

OBS

kinematic viscosity: term standardized by ISO.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Mécanique des fluides et hydraulique (Physique)
  • Rhéologie
DEF

Quotient de la viscosité dynamique d'un fluide par sa masse volumique à la température considérée.

OBS

viscosité cinématique : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Medición y análisis (Ciencias)
  • Mecánica de fluidos e hidráulica (Física)
  • Reología
DEF

Relación entre la viscosidad dinámica o absoluta y la densidad.

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Record 2 2004-02-10

English

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

A measure of resistance to flow; it is the force required to move a plane surface of area 1² over another parallel plane surface 1 cm away at a rate of 1 cm/s, when both surface are immersed in water.

CONT

For many fluids the tangential, or shearing stress that causes flow is directly proportional to the rate of shear strain, or rate of deformation, that results. In other words, the shear stress divided by the rate of shear strain is constant for a given fluid at a fixed temperature. This constant is called the dynamic or absolute, viscosity and often simply the viscosity.

OBS

The term "dynamic viscosity" is standardized by ISO.

Key term(s)
  • coefficient of viscosity

French

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

Coefficient caractéristique d'un fluide, égal à la force nécessaire au déplacement de l'unité de surface plane du fluide, avec une vitesse unité, par rapport à une autre surface plane du même fluide qui lui est parallèle à une distance unité.

OBS

Viscosité absolue = coefficient de viscosité dynamique, d'après le Dict. de l'eau de l'OLF et le glossaire int. d'hydrologie. Son symbole = u.

OBS

Le terme «viscosité dynamique» est normalisé par l'ISO.

Spanish

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

Medida de la resistencia interna de un fluido al movimiento, normalmente expresada por un coeficiente que varía con la temperatura.

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