超声波对水的过冷度影响的实验研究  

Experimental study of the effects of ultrasound on the supercooling of water

作　　者：王葳[1] 张绍志[1] 陈光明[1] 尤鹏青[1] 

机构地区：[1]浙江大学制冷与低温研究所,杭州310027

出　　处：《制冷学报》2003年第1期6-8,共3页Journal of Refrigeration

基　　金：国家自然科学基金资助项目 (5 0 0 760 3 9)

摘　　要：对水的过冷度的研究在冰蓄冷和低温生物等许多领域都有重要意义。通过引起压力场的波动 ,超声波能够对水的过冷结冰过程产生影响。经对 80 0kHz超声波作用下 ,水的过冷度进行实验研究 ,发现超声波能够大幅度降低水的过冷度。超声的这种作用与空化现象有关。The research on the supercooling of water is important in the fields of ice storage and cryobiology.The pressure fluctuation brought by the ultrasound will influence the supercooling and nucleation process of water.In this study experiments are carried out to investigate the supercooling of water under 800KHz ultrasound.It is found that the ultrasound can markedly decrease the supercooling degree of water.This effect is thought to be related with cavitation.

关 键 词：超声波 水 过冷度 实验研究 结冰过程 冰蓄冷 制冷工程 低温工程 

分 类 号：TB611[一般工业技术—制冷工程]