| Author | Search for: Wang, T.; Search for: Liu, P.; Search for: Yang, G. |
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| Format | Text, Article |
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| Conference | 9th National Conference on Theoretical and Practical Oscillations and Vibrations, October 16-22, 2007, Hangzhou, China |
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| Abstract | This paper employs the preconditioning method for unsteady dual-time NS equations to evaluate and analyze the performance of symmetrical plunging dual-foils. The result shows that the trend of efficiency and thrust versus speed agreed well with previous experimental measurement. With a fixed frequency and changing speed, the maximum thrust and efficiency was obtained and with the increase of frequency the maximum thrust and efficiency shifted rightward. These dynamic angles of attack corresponding to the maximum points of thrust and efficiency fall in between 6 to 9 degrees. The vector graph and pressure nephogram showed the transportation and diffusion of vortex separation, revealed that the wing-in-ground effect occurred when dual-foils symmetrically plunging, and this resulted in an increase of averaged thrust and efficiency. |
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| Publication date | 2007 |
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| In | |
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| Identifier | IR-2007-25 |
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| NRC number | NRC-IOT-6486 |
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| NPARC number | 8896171 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 46a980ac-7360-427c-8cc0-6ebd236e957e |
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| Record created | 2009-04-22 |
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| Record modified | 2020-08-12 |
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