碩士 / 國立臺灣大學 / 工程科學及海洋工程學研究所 / 93 / The turbulent flow field around the KVLCC2 tanker and the submarine are numerically simulated by solving the Reynolds Averaged Navier Stokes equations. Finite volume method is implemented in the RANS solver and the structured grids are used. For the KVLCC2 tanker in steady drift motion without the free surface, computations are carried out at angles of yaw from 0 to 12 degrees in model scale. The computational results are validated against the experimental data provided by the “CFD Workshop Tokyo 2005” in terms of various global and local quantities. All the results are in good agreement with experimental data.
For the submarine in steady drift motion, the hull form of submarine is imitation of German S209-1400 submarine. Computations for bare hull are carried out at angles of pitch from -20 to 20 degrees and angles of yaw from 0 through 20 degrees. Additionally, simulations for the submarine with appendages including sail and control fins are performed at angle of pitch from -15 to 20 degrees. The simulated results show that the appendages (sail, control fins) have great influence on flow field and resistance of the submarine. The simulated results also compare with experimental data. The comparison result shows that the present computational approach predicts the outstanding force coefficients and moment coefficients well.
| Identifer | oai:union.ndltd.org:TW/093NTU05345024 |
| Date | January 2005 |
| Creators | Ming-Wu Yang, 楊名梧 |
| Contributors | 郭真祥 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 59 |
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