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Dimensionless quantity characterising the development of Natural Thermal Convection:

\mbox{Gr} = \frac{g \, \beta \, \Delta T \, L^3}{\nu^2}

where

Temperature gradient across Natural Thermal Convection

Kinematic viscosity of the fluid

Thermal expansion coefficient of the fluid

Standard gravity constant

Characteristic length of Natural Thermal Convection


See also


Physics / Thermodynamics / Heat Transfer

Dimensionless Heat Transfer Numbers ] [ Prandtl number ] [ Rayleigh number ]