TERMIUM Plus®

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SHEAR THICKENING [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2003-05-27

English

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

A fluid whose viscosity increases with increased shear rate.

CONT

Any fluid that does not obey the Newtonian relationship between the shear stress and shear rate is called non-Newtonian. ... When the viscosity decreases with increasing shear rate, we call the fluid shear-thinning. In the opposite case where the viscosity increases as the fluid is subjected to a higher shear rate, the fluid is called shear-thickening. Shear-thinning behavior is more common than shear-thickening.

CONT

shear thickening fluids ... Examples: wet sand, concentrated starch suspensions.

French

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

[...] les fluides non newtoniens ont une viscosité qui varie en fonction d'un de ces deux paramètres [contrainte de cisaillement/temps]. Parmi les fluides non newtoniens [citons :] - les fluides dilatants dont la viscosité augmente quand le taux de cisaillement augmente mais ne sont toutefois pas influencés par le temps d'application de ce cisaillement.

OBS

Fluides non newtoniens temps-indépendants : - la viscosité du fluide dépend de la température et du taux de cisaillement. - rhéofluidifiants : la viscosité diminue lorsque le taux de cisaillement croît (shear thinning or pseudoplastic); - rhéoépaississants : la viscosité augmente lorsque le taux de cisaillement croît (shear thickening or dilatant) [...]

Key term(s)
  • fluide rhéo-épaississant

Spanish

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Record 2 1998-02-16

English

Subject field(s)
  • Chemistry
CONT

If viscosity is a univalued function of the rate of shear, a decrease of the viscosity with increasing rate of shear is called shear thinning, and an increase of the viscosity shear thickening.

Key term(s)
  • shear-thickening

French

Domaine(s)
  • Chimie
CONT

Si la viscosité est une fonction à une seule variable de la vitesse de cisaillement, une diminution de la viscosité avec une augmentation de la vitesse de cisaillement se nomme fluidisation du cisaillement et une augmentation de la viscosité se nomme épaississement par cisaillement.

Spanish

Save record 2

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