The interaction between a counter‐rotating vortex pair in vertical ascent and a free surface
作者:
Daniel L. Marcus,
Stanley A. Berger,
期刊:
Physics of Fluids A
(AIP Available online 1989)
卷期:
Volume 1,
issue 12
页码: 1988-2000
ISSN:0899-8213
年代: 1989
DOI:10.1063/1.857471
出版商: AIP
数据来源: AIP
摘要:
The inviscid, two‐dimensional interaction between a pair of counter‐rotating line vortices and a free surface has been studied. A solution to the linearized, small‐disturbance problem has been thoroughly explored. For the nonlinear problem numerical calculations were carried out for Froude numbers representing a range of very weak to very strong vortices. Strong vortices are little affected by the presence of the surface, rising to form a bubblelike disturbance; weaker vortices follow paths like vortices approaching a plane boundary. The experimentally observed scarring phenomena—surface depressions whose axes are perpendicular to the flow plane—are seen in the numerical results.
点击下载:
PDF
(901KB)
返 回