Published February 1978
| Published
Journal Article
Open
The number of waves on unstable vortex rings
- Creators
- Saffman, P. G.
Chicago
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Abstract
An explanation is proposed for the dependence on Reynolds number and other parameters of the number of waves which appear on vortex rings formed by pushing fluid out of a tube. It is shown that the number of waves can be sensitive to the vorticity distribution in the core of the ring. The process of ring formation is discussed and it is concluded that peaked vorticity distributions, limited by viscosity, will occur. Quantitative estimates of the number of waves are made. Agreement with observation is satisfactory.
Additional Information
© 1978 Cambridge University Press. Reprinted with permission. (Received 19 May 1977) This work originated in a discussion with Professor D.W. Moore. Support was provided by the Energy Research Development Administration (AT 04-3-767) and the U.S. Army Research Office, Durham (DAHC 04-75-C-0009).Attached Files
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Additional details
- Eprint ID
- 10128
- Resolver ID
- CaltechAUTHORS:SAFjfm78
- Energy Research and Development Administration (ERDA)
- AT 04-3-767
- Army Research Office (ARO)
- DAHC 04-75-C-0009
- Created
-
2008-04-14Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field