dc.citation.conferencePlace |
JA |
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dc.citation.title |
9th JSME-KSME thermal and fluids engineering conference |
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dc.contributor.author |
Chae, Seokbong |
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dc.contributor.author |
Kim, Jooha |
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dc.contributor.author |
Lee, Jae Hwa |
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dc.date.accessioned |
2023-12-19T18:06:50Z |
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dc.date.available |
2023-12-19T18:06:50Z |
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dc.date.created |
2018-01-08 |
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dc.date.issued |
2017-10-28 |
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dc.description.abstract |
Previous passive flow control methods have limitation in that their drag-reducing effectiveness depends on the Reynolds number. In the present study, a new passive control method (AMR: Adaptive Moving Ring) is devised to reduce drag on a sphere with no Reynolds-number dependence at high Reynolds numbers of Re=0.5×10^5−5.2×10^5 and tested through the wind-tunnel experiment. AMR adaptively changes its size depending on the wind speed (i.e. Reynolds number) without the energy input, showing more drag reduction than other fixed-sized passive devices such as surface roughness and dimples for most of the Reynolds number range tested. AMR, however, has limitation in that its drag-reducing effect depends on the flow direction. |
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dc.identifier.bibliographicCitation |
9th JSME-KSME thermal and fluids engineering conference |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/38272 |
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dc.language |
영어 |
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dc.publisher |
Japan society of mechanical Engineers, Korean society of mechanical Engineers |
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dc.title |
Passively adaptive control of flow over a sphere for drag reduction at high Reynolds numbers |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2017-10-27 |
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