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Absolute and convective instabilities of two-dimensional bluff body wakes in ground effect

Abstract:

Local and global instabilities are investigated of wakes of general two-dimensional bluff bodies placed near and parallel to a plane boundary or ground. A spatio-temporal linear stability analysis is first applied to a four-parameter family of local wake profiles to investigate the fundamental local stability characteristics of the wake in ground effect. The analysis shows significant dependencies of the stability characteristics of the wake on the distance from the wake centreline to the gro...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
Role:
Author
Journal:
European Journal of Mechanics, B/Fluids
Volume:
27
Issue:
5
Pages:
539-551
Publication date:
2008-09-05
DOI:
ISSN:
0997-7546
URN:
uuid:9adbd0d1-734e-405e-9e41-94ed7e36e328
Source identifiers:
291629
Local pid:
pubs:291629

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