陕西师范大学学报（自然科学版）2017，Vol.45Issue(4)：50-58,9.DOI:10.15983/j.cnki.jsnu.2017.04.244
超声场中空化泡对悬浮粒子微流的影响
Microstreaming around a suspended sphere generated by oscillating bubbles in the ultrasonic field
摘要
Abstract
An analytical theory has been developed to calculate microstreaming velocity around a suspended sphere caused by oscillating bubbles in an unbounded viscous liquid.It has been demonstrated that the interaction of a bubble and a rigidity sphere can affect the magnitude and direction of acoustic streaming, especially for tangential components around the rigidity sphere.When the θ1(a component of spherical coordinates originates at the center of the rigidity sphere) varies in a period of π, The magnitude of tangential velocity around the suspended particle reaches the maximum at θ1=π/2.The velocity around the rigidity sphere is related to the relative position of medium.The increment of neighboring bubble radius makes acoustic streaming stronger, while the increment of distance between a bubble and a rigidity sphere induce the acoustic while the increment of distance between a bubble and a rigidity sphere induce the acoustic streaming weaker.关键词
空化泡/刚性粒子/声流/空化Key words
acoustic streaming/suspended spheres/bubble/cavitation分类
数理科学引用本文复制引用
武耀蓉,王成会,莫润阳,陈时..超声场中空化泡对悬浮粒子微流的影响[J].陕西师范大学学报（自然科学版）,2017,45(4):50-58,9.基金项目
国家自然科学基金(11204168,11474191) （11204168,11474191）
中央高校基本科研业务费专项资金(GK201603102) （GK201603102）
