Core stratification effects on natural convection in inclined cavities

Abstract

A numerical and experimental study has been made on the flow and heat transfer in inclined air-filled cavities with aspect ratios 1-18 at Ra numbers from 2.104-5 9 105 and angles of inclination from 40 to 90 o. Core stratification influences the flow. Due to this there arises a torque with two components depending on angle of inclination. On basis of the two torques the computed effects on flow and temperature fields can be explained. For the heat transfer a scaling law could be derived. Experimental data validate the numerical studies.