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Grashoff number

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Grashoff number

(Abbreviated Gr.) A nondimensional parameter used in the theory of heat transfer, defined by

where L is a representative length, T₁ and T₀ representative temperatures, g the acceleration of gravity, and ν the kinematic viscosity.

The Grashoff number is associated with the Reynolds number and the Prandtl number in the study of convection.

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