Abstract

Nusselt numbers and dimensionless flow rates have been calculated as functions of Prandtl number, Grashof number, and a viscosity parameter that takes into account variation of viscosity with temperature. The dependence of heat transfer coefficient and flow rate on the viscosity parameter is shown to be strong enough to require consideration of temperature variation of viscosity for accurate calculations. The results are useful in the design of heat sink assemblies having square vertical slots.

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