TERMIUM Plus®

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

POWER LAW [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2013-07-04

English

Subject field(s)
  • Modelling (Mathematics)
  • Atmospheric Physics
  • Wind Energy
DEF

An alternative equation to the log law used to calculate the approximate wind speed at a given height in the surface layer.

French

Domaine(s)
  • Modélisation (Mathématique)
  • Physique de l'atmosphère
  • Énergie éolienne
DEF

Variante de la loi logarithmique permettant de mesurer la vitesse approximative du vent à une altitude donnée dans la couche de surface.

Spanish

Campo(s) temático(s)
  • Modelización (Matemáticas)
  • Física de la atmósfera
  • Energía eólica
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Record 2 2006-11-15

English

Subject field(s)
  • Rheology
DEF

A relationship between two variables such that one is proportional to a power of the other.

CONT

Power Law Model: A useful rheological model that describes the relationship between viscosity or shear stress and shear rate over the range of shear rates where shear thinning occurs in a Non-Newtonian fluid. Quantifies overall viscosity range and degree of deviation from Newtonian behaviour.

CONT

There are many in the world investigating the use of Robotics for construction and mixes that are as plastic as a result of the addition of reactive magnesia are very suitable for this purpose as they exhibit what is probably best described as a non Newtonian pseudoplastic fluid properties with viscosity decreasing as shear rate increases in accordance with a power law or similar model.

OBS

power law: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Rhéologie
CONT

Sur toute la gamme de vitesses considérée, la pâte se comporte comme un fluide visqueux non newtonien dont la rhéologie est assez classique et bien modélisée par une loi de puissance.

CONT

[...] loi puissance rend bien compte du comportement des polymères à taux de cisaillement élevé mais conduit à une viscosité infinie pour un taux de cisaillement nul [...]

OBS

loi puissance : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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