Air cavity captured by magnetic fluid in `magnetic vacuum' of annular magnet

V. M. Polunin¹ - P. A. Ryapolov¹ - K. S. Ryabtsev¹ - E. B. Postnikov² - A. V. Bridskiy¹ - E. A. Sokolov¹ - A. N. Khudyakov¹

¹ Southwest State University, Kursk, Russia
² Kursk State University, Kursk, Russia

Abstract
The article presents results of an experimental study of capturing, transporting and subsequent splitting of an air cavity into bubbles by a magnetic fluid in the zone of `magnetic vacuum' of an annular magnet. The study was carried out using the acoustomagnetic method. The captured air cavity is characterized by a decreased elasticity coefficient, and the resulting bubbles are relatively large in size. Figs 8, Refs 20.