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coefficient of viscosity [3 records]

Record 1 2012-01-16

English

Subject field(s)
  • Chemistry
  • Phraseology
  • Biotechnology
PHR

Coefficient of viscosity of standard solution.

French

Domaine(s)
  • Chimie
  • Phraséologie
  • Biotechnologie
PHR

Coefficient de viscosité de la solution, du solvant standard.

Spanish

Campo(s) temático(s)
  • Química
  • Fraseología
  • Biotecnología
Save record 1

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.

Save record 2

Record 3 2003-10-31

English

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

The shearing force per unit area required to maintain a unit difference in velocity between two parallel layers of a fluid a unit distance apart ...

French

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

La force de cisaillement par surface unitaire requise pour maintenir une différence unitaire de vitesse entre deux couches parallèles de fluide séparées d'une distance unitaire [...]

Spanish

Campo(s) temático(s)
  • Mecánica de fluidos e hidráulica (Física)
  • Geología
Save record 3

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