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Spatially localised growth within global instabilities of flexible channel flows

Abstract:
We investigate the localised spatial growth of two-dimensional disturbances governed by the long-wavelength Orr-Sommerfeld operator in a rigid channel at sub-transition Reynolds numbers. We discuss the link between this growth and vorticity waves, a striking feature of the self-excited oscillations that arise when flow is driven through a finite-length channel, one wall of which contains a segment of flexible membrane. © 2010 Springer Science+Business Media B.V.

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Authors


Stewart, PS More by this author
Waters, SL More by this author
Billingham, J More by this author
Jensen, OE More by this author
Journal:
IUTAM Bookseries
Volume:
18
Pages:
397-402
Publication date:
2010
DOI:
ISSN:
1875-3507
URN:
uuid:bc7f0fa0-0143-43f8-bc41-c0e7230989e8
Source identifiers:
341421
Local pid:
pubs:341421
Language:
English

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