FLOW AND TEMPERATURE-MEASUREMENTS OF 2 IMMISCIBLE LIQUID LAYERS

Surface tension driven flow of two immiscible liquid layers subjected to a horizontal temperature gradient has been observed. The objective of this study is the visualization of the thermoconvective flow of a d ouble layer fluid system and the implementation of the liquid crystal tracer technique. This flow configuration simulates the encapsulation of electronic melts, where the lower liquid layer represents the melt and the upper layer represents the confining liquid having the task to stop the fluid motion of the melt component. The influence of differe nt encapsulation conditions on the resultant flow pattern of the melt layer has been observed using liquid crystal tracers. The liquid cryst al tracer technique was successfully applied and bears the potential t o become a powerful diagnostic tool, especially with respect to experi ments in space.