Flow visualization of time-varying structural characteristics of Dean vortices in a curved channel
| dc.contributor.advisor | Ligrani, Phillip M. | |
| dc.contributor.advisor | Subramanian, Chelakara S. | |
| dc.contributor.author | Bella, David Wayne | |
| dc.date | December 1988 | |
| dc.date.accessioned | 2012-11-27T18:17:38Z | |
| dc.date.available | 2012-11-27T18:17:38Z | |
| dc.date.issued | 1988-12 | |
| dc.identifier.uri | http://hdl.handle.net/10945/23236 | |
| dc.description.abstract | The time varying development and structure of Dean vortices were studies using flow visualization. Observations were made over a range of Dean numbers from 40 to 200 using a transparent channel with mild curvature, 40:1 aspect ratio, and an inner to outer radius ratio of 0.979. Seven flow visualization techniques were tried but only one, a wood burning smoke generator, produced usable results. Different vortex characteristics were observed and documented in sequences of photographs space one quarter of a second apart at locations ranging from 85 to 135 degrees from the start of curvature. Evidence is presented that supports the twisting/rocking nature of the flow. | en_US |
| dc.description.uri | http://archive.org/details/flowvisualizatio1094523236 | |
| dc.format.extent | 99 p. | en_US |
| dc.language.iso | en_US | |
| dc.rights | This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. | en_US |
| dc.title | Flow visualization of time-varying structural characteristics of Dean vortices in a curved channel | en_US |
| dc.type | Thesis | en_US |
| dc.contributor.corporate | Naval Postgraduate School (U.S.) | |
| dc.contributor.department | Mechanical Engineering | |
| dc.subject.author | Visualization | en_US |
| dc.subject.author | Dean vortices | en_US |
| dc.subject.author | Centrifugal instabilities | en_US |
| dc.subject.author | Rocking motion | en_US |
| dc.description.service | Lieutenant, United States Navy | en_US |
| etd.thesisdegree.name | M.S. in Mechanical Engineering | en_US |
| etd.thesisdegree.level | Masters | en_US |
| etd.thesisdegree.discipline | Mechanical Engineering | en_US |
| etd.thesisdegree.grantor | Naval Postgraduate School | en_US |
| dc.description.distributionstatement | Approved for public release; distribution is unlimited. |
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