Analytical study of combined convection heat transfer for flow in horizontal annulus

الملخص EN

In this paper a numerical investigation is made to study the axially symmetric, laminar air flow in the entrance region of an annulus by solving the two dimensional governing equations of motion (continuity, momentum & energy) using implicit finite difference method and the Gauss elimination technique.

A STAR CCM + program is used.

The results obtained for velocity and temperature profile revealed that, the secondary flow created by natural convection have a significant effect on the heat transfer process.

A comparison has been made for results which show a good agreement.