| Abstract: | Single-drop experiments are carried out with the object of studying the propagation process of a spontaneous vapor explosion and the behavior of pressure waves induced by the explosion. Both a molten tin drop-water system and the molten LiNC3 drop-ethanol system are examined. Propagation of an explosion between two tin drops is confirmed in tin-water experiments, although the apparent propagation velocity is only about 5 m/s and the explosion behavior differs largely between the two drops. In the LiNC3-ethanol system, the traveling behavior of the pressure wave in a one-dimensional channel is analyzed and the velocity through the interaction zone is measured. Full-time coherence is confirmed in a 25-drop experiment and it is revealed that the velocity depends largely on the development stage of the vapor explosion. © 1997 Scripta Technica. Inc. Heat Trans Jpn Res. 25 (2): 76–87, 1996 |
