1991 Volume 17 Issue 4 Pages 854-860
Streamline and temperature distributions and the heat transfer coefficient with natural convection for various fluids were investigated for a cylindrical flat enclosure heated from the bottom. By visualization of the flow pattern with a tracer, the fundamental equations of flow and heat transfer were derived and solved numerically. The streamline and temperature distributions in the enclosure and the heat transfer coefficient on the heated wall were calculated with air, water and olive oil. The range of Rayleigh number was 5.3×103-6.5×107 that of Prandtl number 0.7-200 and the aspect ratio (radius divided by height of cylinder) was 0.864-8.64. The experimental temperature distributions and the heat transfer coefficient were in close agreement with the calculated values.
