Dynamics of an ultrasound contrast agent microbubble near spherical boundary in ultrasound field*

Project supported by the National Natural Science Foundation of China (Grant Nos. 11774088 and 11474090), the Hunan-Provincial Natural Science Foundation of China (Grant No. 13JJ3076), and the Science Research Program of Education Department of Hunan Province of China (Grant No. 14A127).

Hu Ji-Wen1, 2, Wang Lian-Mei1, Qian Sheng-You2, †, Liu Wen-Yi1, Liu Ya-Tao1, Lei Wei-Rui1
       

Schematic sketch of a contrast agent microbubble near a concave wall (a) and its mirror images (b). Here d is the distance between the center of the microbubble and the wall, Rw is the curvature radius of the wall, and θmax is the aperture angle of the wall.