AM05-10-009 周囲気体を考慮した液柱内マランゴニ対流の数値シミュレーション(対流3,一般講演)

概要

論文の詳細を見る
Thermocapillary convection is induced by applying the temperature difference ΔT between cylindrical hot and cold rods sustaining the liquid bridge. If ΔT exceeds the critical value ΔT_c, the flow field exhibits a transition from a two-dimensional steady to a three-dimensional time-dependent oscillatory flow. The onset of oscillation in a half-zone liquid bridge is known to be sensitive to heat transfer at free surface of the, liquid bridge and ambient air motion. In the present study, the thermal fluid behavior of the ambient air and its effect upon the criticality are investigated numerically. Three-dimensional simulation of liquid bridge and ambient air has been performed for a high Prandtl fluid of 2cSt silicone oil by the finite difference method. The effects of temperature of the ambient air are discussed.
日本流体力学会の論文
2005-09-05