声场与电场作用下空化泡的动力学特性  

Dynamic behavior of a cavitation bubble in acoustic field and electric field

作　　者：沈壮志[1] 吴胜举[1] 

机构地区：[1]陕西师范大学应用声学研究所,陕西省物理研究所,陕西省超声学重点实验室

出　　处：《物理学报》2012年第12期344-349,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:11174191;11074158);陕西省自然科学基金(批准号:2011JM1002)资助的课题~~

摘　　要：以液体为工作介质,利用空化泡的RP控制方程,模拟分析了无量纲化的电场频率、场强的幅值以及无量纲化的声波频率、声压幅值的变化对空化泡运动特性的影响.结果表明:声场和电场联合作用时,空化泡运动处于混沌区域范围远高于两者单独作用下空化泡的混沌区域范围.这不仅对声空化的进一步研究具有重要的理论意义,而且对于提高和改进空化降解有机污染物的技术也具有指导意义.The dynamics of a cavitation bubble under acoustic field and an electric field is studied by regarding liquid as a working medium. The effects of the dimensionless frequency and strength of acoustic field and electric field on cavitation bubble dynamical behaviors by Rayleigh-Plesset equation are numerically investigated. The results show that when acoustic field and electric field are combined, chaos area range of cavitation bubble motion is larger than that when only acoustic field or single electric field exists. This is of significance not only for further research of acoustic cavitation but also for enhancing and improving the cavitation degration of organic pollutant technology.

关 键 词：声场 电场 空化 分岔 

分 类 号：O427.4[理学—声学]