Liquid Motion of a saturated-Pool Nucleate Boiling by Interfered Bubbles

Abstract

In order to elucidate the mechanism of saturated-Pool Nucleate boiling by interfered bubbles from the local viewpoint, as a first step, a flow visualization experiment of liquid motion caused by vapor bubble action was carried out. In this experiment, 2 hydrogen generating electrodes for supplying vapor bubbles were provided on the heating surface. Within the present study, the liquid motion was influenced by the vapor bubbling action coming from both electrodes. Moreover, the liquid speed was mainly decided by the liquid extrusion action due to vapor bubble growth and entailed flow effect after the separation of the vapor bubble.