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Effect of a splitter plate on the dynamics of a vortex pair

Rabinovitch, Jason and Brion, Vincent and Blanquart, Guillaume (2012) Effect of a splitter plate on the dynamics of a vortex pair. Physics of Fluids, 24 (7). Art. No. 074110. ISSN 1070-6631. https://resolver.caltech.edu/CaltechAUTHORS:20121011-083534771

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Abstract

An experimental and numerical study was performed to investigate and compare the behavior of a counter-rotating vortex pair and a single vortex in the vicinity of a wall. This analysis is motivated by the theoretical equivalence, in the inviscid limit, between these two configurations. A wind tunnel with two NACA0012 profiles mounted vertically with an optional splitter plate in the center and a stereoscopic particle image velocimetry system was used to experimentally study these interactions. Many significant differences were found between the two configurations, including the growth of the Crow instability in the two vortex configuration, but not in the one vortex/wall configuration. The numerical results re-enforced the experimental results, and emphasized the fundamental physical differences between the two configurations. While modeling a vortex wall system with an image vortex may give correct integral results for loads experienced by blades, this model does not accurately describe the downstream dynamics of the vortex system.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.4737878 DOIArticle
http://pof.aip.org/resource/1/phfle6/v24/i7/p074110_s1PublisherArticle
ORCID:
AuthorORCID
Rabinovitch, Jason0000-0002-1914-7964
Blanquart, Guillaume0000-0002-5074-9728
Additional Information:© 2012 American Institute of Physics. Received 7 September 2011; accepted 28 June 2012; published online 23 July 2012. J.R. would like to thank the Dual Masters Program between the California Institute of Technology and Ecole Polytechnique, and the Partner University Fund for funding him while performing the experimental component of this research. The authors would like to thank members of ONERA DAFE,Meudon, for their help with the experiments and the post-treatment of the experimental data.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Partner University FundUNSPECIFIED
CaltechUNSPECIFIED
Ecole PolytechniqueUNSPECIFIED
Subject Keywords:aerodynamics, boundary layers, confined flow, flow instability, flow visualisation, plates (structures), vortices, wind tunnels
Issue or Number:7
Classification Code:PACS: 47.85.Gj; 47.60.Dx; 47.32.cd; 47.32.Ef; 47.80.Jk. IPC: F15D
Record Number:CaltechAUTHORS:20121011-083534771
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20121011-083534771
Official Citation:Effect of a splitter plate on the dynamics of a vortex pair Jason Rabinovitch, Vincent Brion, and Guillaume Blanquart, Phys. Fluids 24, 074110 (2012), DOI:10.1063/1.4737878
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34839
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:11 Oct 2012 16:14
Last Modified:03 Oct 2019 04:22

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