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https://scholarbank.nus.edu.sg/handle/10635/15745
DC Field | Value | |
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dc.title | Generation of pre-set wavelength Gortler vortices | |
dc.contributor.author | NEO CHEE TIONG, KELVIN | |
dc.date.accessioned | 2010-04-08T10:56:59Z | |
dc.date.available | 2010-04-08T10:56:59Z | |
dc.date.issued | 2006-12-25 | |
dc.identifier.citation | NEO CHEE TIONG, KELVIN (2006-12-25). Generation of pre-set wavelength Gortler vortices. ScholarBank@NUS Repository. | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/15745 | |
dc.description.abstract | The development of a??forceda?? wavelength G??rtler vortices in a laminar boundary layer flow generated over a concave test surface with 2.0 m radius of curvature has been investigated experimentally in the present study. Equally spaced finite length perturbation needles, instead of the conventional vertical wires, were used to pre-set the wavelengths of the vortices. Mean velocity measurements using a single hot-wire probe indicated that the new method is able to pre-set the wavelengths of G??rtler vortices for both free-stream velocities Ui?Y of 1.0 m/s and 3.0 m/s provided that the Reynolds Red, based on needle diameter and free-stream velocity, does not exceed a critical level. It was observed that the breakdown of vortices into turbulence occurred at a lower G??rtler number Gi?? for free-stream velocity Ui?Y of 3.0 m/s. The spanwise spacing between the needles was also varied to study the possible effects on the development of the G??rtler vortices. | |
dc.language.iso | en | |
dc.subject | perturbation needles, Görtler vortices, boundary layer, | |
dc.type | Thesis | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.contributor.supervisor | WINOTO, S H | |
dc.contributor.supervisor | SHAH, DILIP A | |
dc.description.degree | Master's | |
dc.description.degreeconferred | MASTER OF ENGINEERING | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Master's Theses (Open) |
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NeoCTK_1.pdf | 37 kB | Adobe PDF | OPEN | None | View/Download | |
NeoCTK_2.pdf | 15.8 kB | Adobe PDF | OPEN | None | View/Download | |
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NeoCTK_6.pdf | 16.72 kB | Adobe PDF | OPEN | None | View/Download | |
NeoCTK_7.pdf | 1.97 MB | Adobe PDF | OPEN | None | View/Download |
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