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DC Field | Value | Language |
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dc.contributor.author | Bori, Ige | - |
dc.contributor.author | Yeo, K.S. | - |
dc.contributor.author | Dou, H-S | - |
dc.date.accessioned | 2022-01-12T14:01:51Z | - |
dc.date.available | 2022-01-12T14:01:51Z | - |
dc.date.issued | 2012 | - |
dc.identifier.uri | http://repository.futminna.edu.ng:8080/jspui/handle/123456789/14221 | - |
dc.description.abstract | Compliant surface has been proved in various theoretical studies as a promising tool in delaying transition. This study concerns our recent work carried on the evolution of pulse-initiated disturbance wavepackets over finite-length compliant panels in a Blasius boundary layer by direct numerical simulation (DNS) method. A finite section of the wall was replaced by a tensioned membrane on a damped foundation. By comparing with the rigid wall case, the upstream intervention by a finite compliant panel was found to effectively delay the onset of the incipient turbulent spot – an increase of about 40% in the transition distance with respect to the initiation point was obtained. Transition distance to the occurrence of the incipient turbulent spot was increased further to about 75% relative to a rigid wall when a second compliant panel was introduced. Spectral analysis shows the important role of the fundamental 2D modes in wavepacket evolution and the roles played by compliant panels in transition delay. | en_US |
dc.language.iso | en | en_US |
dc.publisher | American Physical Society (APS), 65th Annual Meeting Division of Fluid Dynamics (DFD), San Diego, California, United States of America. November 18 - 20, 2012 | en_US |
dc.title | Evolution of Wavepacket Over Short Compliant Panels in a Blasius Boundary Layer | en_US |
dc.type | Other | en_US |
Appears in Collections: | Mechanical Engineering |
Files in This Item:
File | Description | Size | Format | |
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APS 2012 Abstract.pdf | 34.06 kB | Adobe PDF | View/Open |
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