In free con-vection heat transfer, Nusselt number is function of
A)Grashoff no. and Reynold no.
B)Grashoff no. and Prandtl no.
C)Prandtl no. and Reynold no.
D)Grashoff no., Prandtl no. and Reynold no.
E)none of the above.

Question

Quizplus · Accepted Answer

In free convection heat transfer, the Nusselt number is a function of the Grashoff number and the Prandtl number. The Grashoff number characterizes the ratio of buoyancy to viscous force in the fluid, which is crucial in free convection, while the Prandtl number relates the fluid's momentum diffusivity to its thermal diffusivity.

In Free Con-Vection Heat Transfer, Nusselt Number Is Function of