碩士 / 國立海洋大學 / 造船工程學系 / 87 / In this thesis, A low-order potential based panel method is presented for the analysis of flow past a two dimensional super-cavitating hydrofoil or a three dimensional partially-cavitatin-g hydrofoil. A closure model must be employed in order to make the mathemati-cal formulation close and the solution unique.
The cavity shape is determined by two methods. In the first, the cavity length is given and the cavitation number is unknow-n. We employ this method to analyze the two dimensional super-cavitating hydrofoil flows by the total velocity potential. In the second, the cavitation number is given and the cavity leng-th is unknown. We employ this method to analyze three dimensio-nal partially-cavitating hydrofoil flows by the perturbation po-tential.
In the present study, the cavity shape is unknown and is a part of the solution. It makes the problem nonlinear, and we employ a nonlinear iteration method to analyze this problem. The results are compared with those obtained by different metho-ds. Careful in-vestigation shows that the present methods are robust and reliable as far as engineering applications are conc-erned.
| Identifer | oai:union.ndltd.org:TW/087NTOU0345007 |
| Date | January 1999 |
| Creators | Weng Ying-Chieh, 翁英傑 |
| Contributors | Chen J.-H., 陳建宏 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 80 |
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