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Recent progress in the use of compliant walls for laminar flow control
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Carpenter, P. W. (2008) Recent progress in the use of compliant walls for laminar flow control. In: 14th European Conference for Mathematics in Industry, Univ Carlos III Madrid, Leganes, Spain, Jul 10-14, 2006. Published in: Journal of Mathematics in Industry, Vol.12 pp. 178-187. ISBN 978-3-540-71991-5. ISSN 2190-5983.
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Abstract
It has been known for some time that an appropriately designed compliant wall (artificial dolphin skin) is highly effective for laminar flow control in low-disturbance environments. Unfortunately., compliant walls are not really practical for aeronautical applications. Accordingly, we focus here on marine applications. The marine environment tends to have much higher levels of freestream turbulence than found in flight conditions typical of cruise. Herein, we explore the effects of freestream turbulence on laminar-turbulent transition. In particular, we investigate the velocity streaks generated in the boundary layer by freestream turbulence. Furthermore, we carry out a numerical-simulation study of the effects of wall compliance on the velocity streaks. We find that boundary layers over compliant walls are much less receptive to streaks than those over a rigid surface. This implies that compliant walls should be effective at laminar flow control even in environments with relatively high levels of freestream turbulence.
| Item Type: | Conference Item (UNSPECIFIED) | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QA Mathematics T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
| Library of Congress Subject Headings (LCSH): | Laminar flow, Drag (Aerodynamics) | ||||
| Journal or Publication Title: | Journal of Mathematics in Industry | ||||
| Publisher: | Springer | ||||
| ISBN: | 978-3-540-71991-5 | ||||
| ISSN: | 2190-5983 | ||||
| Editor: | Bonilla, LL and Moscoso, M and Platero, G and Vega, JM | ||||
| Official Date: | 2008 | ||||
| Dates: |
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| Volume: | Vol.12 | ||||
| Number of Pages: | 10 | ||||
| Page Range: | pp. 178-187 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Title of Event: | 14th European Conference for Mathematics in Industry | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Univ Carlos III Madrid, Leganes, Spain | ||||
| Date(s) of Event: | Jul 10-14, 2006 |
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