Free Convection

Natural convection or free convection is caused by fluid motion due to density differences. In most practical cases, the free convection may be neglected when there is a fluid flow i.e. forced convection. A dimensional analysis of the heat transfer by free convection results in:

Nu= Nusselt number
Pr= Prandtl number
Gr= Grashof number

Copyright © 1998 Taftan Data. All Rights Reserved