NUMERICAL STUDY OF THE EFFECT OF FORCED CONVECTION ON MASS TRANSPORT FROM A THIN OBLATE SPHEROID OF ICE IN AIR.

Abstract

Numerical solutions have been found for the vapor density field around a simple ice plate, idealized as an oblate spheroid of axis ratio 0. 05, having Reynolds numbers between 0. 1 and 20, and falling in a fluid of Schmidt number 0. 71. These solutions are compared with experimental data obtained by other authors. It is shown that the ventilation coefficient varies at higher Reynolds numbers, while as the Reynolds number approaches zero it approaches its stationary value via the analytical solution. Over the range of Reynolds numbers investigated, ventilation coefficients for thin oblate spheroids were found to be lower than those for spheres.