What is the physical significance of the Nusselt number (Nu)? Select one or more answers. V...

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What is the physical significance of the Nusselt number (Nu)? Select one or more answers. V Nu represents the enhancement of heat transfer through a fluid layer as a result of convection relative to conduction across the same fluid layer. O Nu represents the ratio of viscous forces to buoyancy forces. O Nu is same as Reynolds number Re. O Nu is the dimensionless convection heat transfer coefficient. What is the physical significance of the Nusselt number (Nu)? Select one or more answers. V Nu represents the enhancement of heat transfer through a fluid layer as a result of convection relative to conduction across the same fluid layer. O Nu represents the ratio of viscous forces to buoyancy forces. O Nu is same as Reynolds number Re. O Nu is the dimensionless convection heat transfer coefficient.

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