HEAT AND FLUID FLOW AT ENTRANCE REGIONS OF ROTATING ISO-HEAT FLUX CHANNELS WITH LAMINAR THROUGHFLOW

A theoretical study is performed on three-dimensional, heat transfer and fluid flow in radially rotating heated channels with steady, laminar throughflow. Consideration is given to the channel of different geometry. Both the rotational speed and throughflow rate are varied. The flow is hydrodynamically and thermally developing, with a constant wall heat flux. The velocity-vorticity method is employed in the formulation and numerical results are obtained by means of a finite-difference technique. The Nusselt number, friction factor, and temperature and velocity distributions are determined, and the role of the Coriolis force on the entrance-region transport phenomena is investigated. Results are compared with the existing literature.