DYNAMIC NUCLEATION OF ICE INDUCED BY A SINGLE STABLE CAVITATION BUBBLE

Evidence is presented of the dynamic nucleation of ice induced by an i solated stable cavitation bubble in undercooled water. The evidence su pports the notion of dynamic nucleation as a result of the freezing po int shift due to high pressure pulses associated with a collapsing bub ble. It is found that the cavitation bubble requires minimum undercool ing, 5 K, to initiate nucleation on ide. This undercooling may be attr ibuted to the temperature rise of the water due to the heat generated by compression of the bubble or the undercooling required for normal i ce to nucleate on a high pressure phase. (C) 1998 American Institute o f Physics.