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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 邱逢琛 | |
dc.contributor.author | Tsung-Lin Wu | en |
dc.contributor.author | 吳宗霖 | zh_TW |
dc.date.accessioned | 2021-06-17T01:38:24Z | - |
dc.date.available | 2022-08-02 | |
dc.date.copyright | 2017-08-02 | |
dc.date.issued | 2017 | |
dc.date.submitted | 2017-07-31 | |
dc.identifier.citation | [1] 黃道祥.華健, “船運汙染及防治之道, ”《科學發展》, vol. 477, p.p.64-70, 2012/9
[2] 黃道祥, “綠色航運,”《科學發展》, vol. 482, p.p.60-67, 2013/2 [3] C.C. Lindsey, “Form, function and locomotory habits in fish,” in Fish Physiology Vol. VII Locomotion, W. S. Hoar and D. J. Randall, Eds. New York: Academic, pp. 1–100, 1978 [4] Michael Sfakiotakis et al , “Review of Fish Swimming Modes for Aquatic Locomotion,” IEEE JOURNAL OF OCEANIC ENGINEERING, vol. 24, NO. 2, APRIL 1999 [5] W.J. McCroskey, “Unsteady hydrofoils, Annu,” Rev. Fluid Mech., 14, 285-311, 1982 [6] P. Freymuth, “Propulsive vortical signature of plunging and pitching hydrofoils,” AIAA J., 26, 881-883, 1988 [7] J.M. Anderson, “Vorticity control for efficient propulsion,” Ph.D. Dissertation, Department of Ocean Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA, 1996 [8] D.A. Read, F.S. Hover, M.S. Triantafyllou, “Forces on oscillating foils for propulsion and maneuvering,” J. Fluids Structures 17:163-183, 2003 [9] F.S. Hover, O. Haugsdal, M.S. Triantafyllou, “Effect of angle of attack profiles in flapping-foil propulsion,” Journal of Fluids and Structures, 19, 37-47, 2004 [10] J.M. Anderson, K.S., D.S. Barrett, M.S. Triantafyllou, “Oscillating foils of high propulsive efficiency, ” Journal of Fluid Mechanics, 360: p. 41-72, 1997 [11] D.A. Read, F.S.H., M.S. Triantafyllou, “Forces on oscillating foils for propulsion and maneuvering,” Journal of Fluids and Structures, 17: p. 163-183, 2003 [12] F.S. Hover, Ø.H., M.S. Triantafyllou, “Effect of angle of attack profiles in flapping foil propulsion, ” Journal of Fluids Structures, 19: p. 37-47, 2004 [13] L. Schouveiler, F.S.H., M.S. Triantafyllou, “Performance of flapping foil propulsion.” Journal of Fluids and Structures, 20: p. 949-959, 2005 [14] F.C. Chiu, Y.T. Chien, W.C. Tiao, “Hydrodynamic Characteristics of Two Oscillating Fins in Series with Heave-Pitch Coupled Motions,” MTS/IEEE [15] R.F. Burnett, “Wave energy for propelling craft - Nothing new,” The Naval Architect, p.239, 1979 [16] Anon, “Wave power for ship propulsion,” The Motor Ship, 64 (757), 67-69, 1983 [17] A. Berg, “Trials with passive foil propulsion on M/S Kystfangst Project no. 672.138, Technical report.” Fiskeriteknologisk Forskningsinstitutt, Fartoyseksjon, Marinteknisk snter, Hakon Hakonsensgt., Trondheim, 34, 7000, 1985 [18] K.Dybdahl “Foilpropellen kan revolusjonere skipsfarten,” Teknisk Ukeblad / Teknikk, 39, 10- 11, 1988 [19] M.N. Nikolaev, A.I. Savitskiy, Y.U.F. Senkin, “Basics of calculation of the efficiency of a ship was propulsor of the wing type,” Sudostroenie (4):7–10, 1995 [20] M.S. Triantafyllou, D.S. Barrett, “Propulsion mechanism employing flapping foils,” Google Patents, 1995. [21] Duncan Graham-Rowe, 'Whatever floats your boat,' Nature, vol. 454, no. 7207, pp. 924-925, 2008 [22] Forng-Chen Chiu, Wen-Fu Li, Wen-Chuan Tiao, “Preliminary study on a concept of wave propulsion by an active pitch-oscillating fin,” MTS/IEEE OCEANS '14, Taipei, Taiwan, 2014/4 [23] MARINTEK ECON CM DNV, “Study of greenhouse gas emission from ships,” Final Report IMO, 2000 [24] J. J. Magnuson, “Locomotion by scombrid fishes: Hydromechanics, morphology and behavior,” in Fish Physiology Vol. VII Locomotion, W.S. Hoar, D. J. Randall, Eds. New York: Academic, pp. 239–313, 1978 [25] 徐玉婷,“應用船艏振動翼於波浪推進之船模實驗探討,”台灣大學工程科學及海洋工程學系碩士論文, 2016年1月 [26] 林昱仲,“自航船模實驗系統建立及其應用之研究,”, 台灣大學工程科學及海 洋工程學系碩士論文, 2012年10月 [27] ..E.S. Filippas, K.A. Belibassakis, “Hydrodynamic analysis of flapping-foil thrusters operating beneath the free surface and in waves,” Engineering Analysis with Boundary Elements 41, 47–59, 2014 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/67575 | - |
dc.description.abstract | 本研究提出的應用主動縱搖船艏振動翼為一種新型的節能裝置,可以有效地擷取波浪中的能量,並將其轉換為可用之推力以輔助一般商船推進,如此將大幅減少船舶燃油消耗,達到降低二氧化碳排放量的目標。
首先使用一艘貨櫃輪的1/50縮尺船模進行自航船模實驗,並選用翼型為NACA0016之振動翼兩片分別安裝於船艏左右兩舷,進行一系列迎波實驗以驗證該裝置的可行性。規則波實驗結果顯示,只要振動翼的縱搖領先起伏相位角在適當範圍內,對於船舶於波浪中推進之速度提升與節能效益可有顯著成果,當波長船長比為1.0和1.3時,最大能源節省分別可達6.2%和18.9%。而不規則波實驗由於受限於波浪無法預知以及設備響應速度不足等因素,艏翼縱搖領先起伏相位角最高只能到56度,平均船速增加之百分比也僅提升1.03%。但根據整體趨勢判斷,若能克服實驗設備的限制提升艏翼響應速度,預期將能使船速更顯著地提升。 接著透過計算流體動力分析軟體FLUENT探究振動翼推進性能受波浪環境之影響,在波浪領先船艏起伏相位角為 條件下所擷取的波浪能量顯著地超越波阻的損耗,使得在特定艏翼縱搖領先起伏相位角範圍內之推力係數明顯提升。然而若振動翼在起伏的過程中有露出水面,則艏翼的最佳領先相位角將會需要增加,而此現象並不利於不規則波環境下之艏翼控制,因此因應不規則波環境,艏翼設置位置應盡量增加深度以確保翼型起伏時皆完整沒在水面下。本研究更進一步找出振動翼之史特豪數(St)與最佳入流攻角之間的關係,藉此開發出不規則波之改良控制法則,改良後不只平均推力係數提升1.93%,且總效率及艏翼縱搖效率亦分別提升4.29%及7.39%。本研究所得之艏翼改良控制法則可做為後續進行不規則波實驗驗證的參照依據,預期將能進一步有效提升不規則波中的推力及整體推進效率。 | zh_TW |
dc.description.abstract | The active pitch oscillating bow fin proposed in this research is a new idea of energy-saving device for ship propulsion by effectively extracting wave energy to convert into available propulsion force. The purpose of this research is to substantially reduce fuel consumption as well as carbon dioxide emissions with the aid of the device installed in merchant ships.
First of all, free-running model tests were conducted by using a scale model of a container ship, with two pitch-oscillating bow fins in NACA0016 section mounted on the bow of port and starboard. A series of test were conducted in head waves to verify the validity of the device. The results of the regular wave tests reveal considerable enhancement of speed and energy-saving efficiency when the phase lead of the bow fin pitch motion with respect to its heave motion is set in a proper range. For the cases of wavelength to ship length ratio of 1.0 and 1.3, the maximum of power efficiency improving may reach to around 6.5% and 18.9% respectively. Nevertheless, the tests of irregular waves are subject to unpredicatability of waves and unsufficient response speed of the actuator. It means that the phase lead of the bow fin pitch motion with respect to its heave motion is limited to 56 degree at most. Consequently, the mean speed of ship improved merely 1.03.%. Based on the trend of test results in irregular waves, it can be expected that the speed should increase as long as the actuator can response faster. Then the CFD software FLUENT was applied to investigate the influence of waves to efficiency of the pitch-oscillating bow fins. According to the CFD results, for the case that the phase lead of the heaving motion with respect to the incident wave is set at 120 degree, the thrust obtained from wave energy extraction become significantly higher than the added resistance due to wave, and makes the thrust coefficient significantly increased in a proper range of the phase lead of the bow fin pitch motion with respect to its heave. However, if the pitch-oscillating bow fins moving out of water surface occurred, the optimal phase lead of the bow fin pitch motion with respect to its heave will increase. This is not good for the bow fins control in irregular waves. Therefore, it is important to mount the pitch-oscillating bow fins as deep as possible. Furthermore, this research intends to ascertain the relationship between optimum angle-of-attack and Strouhal number(St), so as to develop a method for improving the bow fins control in irregular waves. By applying the present modified method, not only the average thrust coefficient is improved by 1.93%, but the total efficiency and pitching efficiency also increases by 4.29% and 7.39% respectively. As a future work, it is suggested to carry out irregular wave tests applying the modified control method of pitch-oscillating bow fins for verifying its validity to enhance the performance of the bow fins in irregular waves. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T01:38:24Z (GMT). No. of bitstreams: 1 ntu-106-R04525085-1.pdf: 7055441 bytes, checksum: c01f1d332f6ae8def7e5abd92c1a4482 (MD5) Previous issue date: 2017 | en |
dc.description.tableofcontents | 致謝 I
摘要 II ABSTRACT IV 目錄 V 圖目錄 X 表目錄 XV 符號說明 XVII 第一章 緒論 1 1-1 研究動機 1 1-2 文獻回顧 2 1-2-1 仿生振動翼之推進理論 2 1-2-2 仿生振動翼之實際應用 5 1-3 研究目標與方法 9 1-4 本文架構 11 第二章 實驗配置 12 2-1 供試船模及振動翼配置 12 2-1-1 船模及振動翼幾何 12 2-1-2 振動翼運動模式 15 2-2 自航船模實驗系統架構 16 2-2-1 船模自航系統 17 2-2-2 振動翼控制系統 18 2-2-3 量測系統 19 2-3 振動翼縱搖控制方法 21 2-3-1 規則波條件下控制方法 21 2-3-2 不規則波條件下控制方法 22 2-4 實驗條件設定 23 2-3-1 波浪條件 23 2-3-2 振動翼之縱搖振幅 26 第三章 實驗結果與討論 27 3-1 規則波下驗證 27 3-1-1 波浪中翼不做動平均船速測試 27 3-1-2 波浪中翼做動下平均船速測試 30 3-1-3 入流攻角影響 37 3-2 規則波下節能效益 38 3-3 不規則波下實驗結果 41 3-3-1 不規則波中翼不做動平均船速測試 41 3-3-2 不規則波中振動翼作動下平均船速測試 43 第四章 數值計算之數學模式與方法 47 4-1 數學模式 47 4-1-1 座標系統與運動方程式 47 4-1-2 力矩推導 49 4-2 流體無因次參數與振動翼性能參數 51 4-2-1 流體無因次參數 51 4-2-2 振動翼性能參數 53 4-3 網格建置與品質 55 4-3-1 網格產生方式 55 4-3-2 數值擴散 56 4-3-3 網格品質 56 4-3-4 動態網格理論 59 4-3-5 邊界條件 60 4-4 統御方程式與多相流模型 61 4-4-1 統御方程式 61 4-4-2 多相流模型 62 4-5 紊流模式 63 4-5-1 RANS方程式 63 4-5-2 Realizable k-epsilon方程式 64 4-6 數值計算方法 66 4-6-1 有限體積法 66 4-6-2 流場壓力速度耦合求解 66 第五章 數值計算結果與討論 68 5-1 計算域網格設計與時間步長選擇 68 5-1-1 計算域大小 68 5-1-2 邊界區網格 69 5-1-3 時間步長選擇 71 5-1-4 網格獨立性驗證 72 5-1-5 文獻驗證 74 5-2 規則波實驗結果驗證 76 5-2-1 無窮水深 76 5-2-2 自由液面下驗證 80 5-2-3 波浪條件下之沒水深度影響 84 5-3 不規則波中振動翼性能探討 91 5-3-1 與不規則運動相同起伏動能之規則運動 91 5-3-2 不規則運動模擬結果 92 5-4 不規則波中振動翼控制方法之改進 97 第六章 結論與建議 100 參考文獻 102 附錄 104 [附錄1] 規則波中波長船長比1.3條件下之實驗影片截圖 104 | |
dc.language.iso | zh-TW | |
dc.title | 應用主動縱搖船艏振動翼輔助船舶於不規則波中推進之研究 | zh_TW |
dc.title | Study on Ship Propulsion in Irregular Waves Augmented by an Active Pitch Oscillating Bow Fin | en |
dc.type | Thesis | |
dc.date.schoolyear | 105-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 辛敬業,陳柏汎,郭振華,蔡進發 | |
dc.subject.keyword | 船艏振動翼,波浪推進,自航船模實驗,計算流體力學, | zh_TW |
dc.subject.keyword | active pitch-oscillating bow fin,wave propulsion,free-running model test,Computational Fluid Dynamics (CFD), | en |
dc.relation.page | 104 | |
dc.identifier.doi | 10.6342/NTU201702266 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2017-07-31 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 工程科學及海洋工程學研究所 | zh_TW |
顯示於系所單位: | 工程科學及海洋工程學系 |
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