The empirical correlation for convective heat transfer for free convection has no: Reynolds number Nusselt number Grashof number Prandtl number

The empirical correlation for convective heat transfer for free convection has no Reynolds number.<br /><br />The Reynolds number is a dimensionless quantity used to predict the flow regime in fluid mechanics. It is defined as the ratio of inertial forces to viscous forces and is used to determine whether the flow is laminar or turbulent.<br /><br />In the case of free convection, the flow is driven by natural convection, which is the movement of fluid caused by temperature differences. The empirical correlation for convective heat transfer in free convection is typically based on the Grashof number, dimensionless quantity that represents the ratio of buoyancy forces to viscous forces.<br /><br />The Nusselt number is another dimensionless quantity used in convective heat transfer to represent the ratio of convective to conductive heat transfer. It is used to characterize the overall heat transfer coefficient in convective heat transfer problems.<br /><br />The Prandtl number is a dimensionless quantity that represents the ratio of momentum diffusivity to thermal diffusivity. It is used to characterize the relative importance of momentum and heat transfer in fluid flow.<br /><br />In summary, the empirical correlation for convective heat transfer for free convection does not involve the Reynolds number, but it does involve the Grashof number, Nusselt number, and Prandtl number.