EDP Sciences Journals List
Free access article

Issue ESAIM: PROC
Volume 7, 1999
Third International Workshop on Vortex Flows and Related Numerical Methods
Page(s) 280 - 291
DOI 10.1051/proc:1999026

ESAIM: Proc., 1999, Vol. 7, pp. 280-291
DOI: 10.1051/proc:1999026

Response of a columnar vortex to a wrapped vortex loop

J.S. Marshall

Iowa Institute of Hydraulic Research and Department of Mechanical Engineering, The University of Iowa Iowa City, Iowa, U.S.A


Abstract
A computational and experimental study of the interaction between an initially columnar vortex and a wrapped vortex loop was performed, which focused on the columnar vortex response to the vortex loop. This problem is motivated by applications involving three-dimensional vortex interaction with a solid body, where the secondary vorticity shed from the body rolls up into a series of loop-like structures that are advected away from the body by the primary vortex. As a secondary vortex loop wraps around a columnar vortex, it becomes entrained into the vortex core due to the self-induced velocity of the loop. The columnar vortex response as a secondary vortex loop moves close to and impacts upon its lateral core surface includes a combination of bending waves, waves of variable core area, and core shape deformation. If a vortex loop is sufficiently strong, its interaction with the columnar vortex is also accompanied by ejection of vorticity from the columanr vortex, sometimes leading to development of a traveling vortex breakdown.



© EDP Sciences, ESAIM 1999


What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.