Faculty of Science, Ochanomizu University
The Institute of Space and Astronautical Science
出版者
宇宙科学研究所
出版者(英)
Institute of Space and Astronautical Science
雑誌名
The Institute of Space and Astronautical Science report. S.P. : The Proceedings of the Symposium on Mechanics for Space Flight 1987
巻
6
ページ
19 - 27
発行年
1988-03
抄録(英)
Mechanism of crosslinking of two vortex rings has been investigated experimentally. Phase locked measurements of velocity using x-type hot wire were carried out over the whole flow field at point by point, and time dependent vorticity fields were educed. Also, the flow field were visualized by Schlieren method. It is found that a new pair of vortex tube are created connecting the interacting vortex rings and they grow up gradually while the vorticity intensities of the main rings decreases. This is considered as kind of bridging phenomenon of the vortex tubes, proposed by Kida and Takaoka in their numerical simulations.