Lateral G-Jitter Effects on Liquid Motion and Thermocapillary Convection in AN Open Square Container Under Weightless Condition

Lateral g-jitter effects on liquid motion in an open container under weightless condition are studied numerically and analytically. A hysteresis parameter is incorporated into the numerical scheme to allow for different kinds of contact line conditions. The disturbing, damping, resonant, hysteresis and depth effects on free surface deformation are investigated in detail. The importance of g-jitter with resonant frequencies and low frequencies is also shown. Based on the former results, the influence of g-jitter on steady thermocapillary convection is also studied numerically. It is found that the g-jitter and thermocapillary flow interact most intensely only in the free surface layer region, the influence of g-jitter diminishes very fast as the depth increases. The g-jitter disturbance of local conduction heat transfer along a crystal growth front is also examined.