請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/73615
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 朱錦洲(Chin-Chou Chu) | |
dc.contributor.author | Cheng-Kai Fan | en |
dc.contributor.author | 范承凱 | zh_TW |
dc.date.accessioned | 2021-06-17T08:06:50Z | - |
dc.date.available | 2024-08-20 | |
dc.date.copyright | 2019-08-20 | |
dc.date.issued | 2019 | |
dc.date.submitted | 2019-08-19 | |
dc.identifier.citation | 1. Zhu, Q. and Z. Peng, Mode coupling and flow energy harvesting by a flapping foil. Physics of Fluids, 2009. 21(3): p. 033601.
2. Peng, Z. and Q. Zhu, Energy harvesting through flow-induced oscillations of a foil. Physics of fluids, 2009. 21(12): p. 123602. 3. Zhu, Q., Optimal frequency for flow energy harvesting of a flapping foil. Journal of Fluid Mechanics, 2011. 675: p. 495-517. 4. Ahmed, M.R. and S. Sharma, An investigation on the aerodynamics of a symmetrical airfoil in ground effect. Experimental Thermal and Fluid Science, 2005. 29(6): p. 633-647. 5. Platzer, M., et al. Development of a new oscillating-wing wind and hydropower generator. in 47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition. 2009. 6. Zhu, Q., Energy harvesting by a purely passive flapping foil from shear flows. Journal of Fluids and Structures, 2012. 34: p. 157-169. 7. Lua, K., et al., Wake-structure formation of a heaving two-dimensional elliptic airfoil. AIAA Journal, 2007. 45(7): p. 1571-1583. 8. Lauder, G.V. and E.G. Drucker, Morphology and experimental hydrodynamics of fish fin control surfaces. IEEE journal of oceanic engineering, 2004. 29(3): p. 556-571. 9. Abiru, H. and A. Yoshitake, Study on a flapping wing hydroelectric power generation system. Journal of Environment and Engineering, 2011. 6(1): p. 178-186. 10. Timmer, W. An overview of NACA 6-digit airfoil series characteristics with reference to airfoils for large wind turbine blades. in 47th AIAA aerospace sciences meeting including the new horizons forum and aerospace exposition. 2009. 11. Katzmayr, R., Effect of periodic changes of angle of attack on behavior of airfoils. NASA Technical Reports Server, 1922. 12. Abbott, I.H. and A.E. Von Doenhoff, Theory of wing sections, including a summary of airfoil data. 1959: Courier Corporation. 13. Xiao, Q. and Q. Zhu, A review on flow energy harvesters based on flapping foils. Journal of Fluids and Structures, 2014. 46: p. 174-191. 14. Huxham, G., S. Cochard, and J. Patterson. Experimental parametric investigation of an oscillating hydrofoil tidal stream energy converter. in 18th Australasian Fluid Mechanics Conference (AFMC), Launceston, Australia, Dec. 2012. 15. Davids, S.T., A Computational and Experimental Investigation of a Flutter Generator. 1999, NAVAL POSTGRADUATE SCHOOL MONTEREY CA. 16. Lindsey, K., A feasibility study of oscillating-wing power generators. 2002, Naval Postgraduate School Monterey CA. 17. Jones, K.D., K. Lindsey, and M. Platzer, An investigation of the fluid-structure interaction in an oscillating-wing micro-hydropower generator. WIT Transactions on The Built Environment, 2003. 71. 18. Ghadiri, B. and M. Razi, Limit cycle oscillations of rectangular cantilever wings containing cubic nonlinearity in an incompressible flow. Journal of Fluids and Structures, 2007. 23(4): p. 665-680. 19. Dumas, G. and T. Kinsey, Eulerian simulations of oscillating airfoils in power extraction regime. Transactions on Engineering Sciences, 2006. 52. 20. Simpson, B.J., F.S. Hover, and M.S. Triantafyllou. Experiments in direct energy extraction through flapping foils. in The Eighteenth International Offshore and Polar Engineering Conference. 2008. International Society of Offshore and Polar Engineers. 21. Galili, I., D. Kaplan, and Y. Lehavi, Teaching Faraday’s law of electromagnetic induction in an introductory physics course. American Journal of Physics, 2006. 74(4): p. 337-343. 22. Christodoulides, C., Equivalence of the Ampere and Biot-Savart force laws in magnetostatics. Journal of Physics A: Mathematical and General, 1987. 20(8): p. 2037. 23. Chiu, W.-Y. and J.-W. Horng, High-input and low-output impedance voltage-mode universal biquadratic filter using DDCCs. IEEE Transactions on Circuits and Systems II: Express Briefs, 2007. 54(8): p. 649-652. 24. Pirner, M. and S. Urushadze, Liquid damper for suppressing horizontal and vertical motions—parametric study. Journal of Wind Engineering and Industrial Aerodynamics, 2007. 95(9-11): p. 1329-1349. 25. 張元齊, 在均勻水流中以雙水翼擷取能量之初步研究. 臺灣大學應用力學研究所學位論文, 2018: p. 1-112. 26. McAlister, K.W., L.W. Carr, and W.J. McCroskey, Dynamic stall experiments on the NACA 0012 airfoil. NASA Technical Reports Server, 1978. 27. Kulah, H. and K. Najafi. An electromagnetic micro power generator for low-frequency environmental vibrations. in 17th IEEE International Conference on Micro Electro Mechanical Systems. Maastricht MEMS 2004 Technical Digest. 2004. IEEE. 28. 龔彥回, 非撓性反置魚板和卡門渦街交互作用之流場實驗分析. 臺灣大學應用力學研究所學位論文, 2016: p. 1-85. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/73615 | - |
dc.description.abstract | 本研究的目的是要發展一種對環境友善且是自持性的能量擷取系統。實驗系統是利用水 翼在高攻角下所產生的側向推力驅動一線性運動機構,加上巧妙的利用水流改變水翼的攻角,使得該線性運動機構作往復運動,進而帶動發電機構而達到自持性的擷取能量的系統。初步的成果顯示所發展的能量擷取系統應用性強,在溪流或者渠道中都可以使用。
研究初步的構想要使用水翼來行使能量擷取,並利用彈簧作為改變水翼攻角的手段。最重要的參數為擺動軸位置和俯仰運動的彈簧彈性係數,使用三種不同的對稱機翼,看不同形狀的對稱機翼擷取出來的能量會不會有所不同,而數據顯示NACA0012此種翼型有最佳的擷取能量,使用電磁感應作為擷取能量的方法,最好的NACA0012翼型在翼展20公分,水流速度每秒0.26公尺時約有12.11(伏特)的電壓輸出。 測量後發現彈簧的效果有其限制,結果是轉向時間過長,能量擷取會有過多時間呈現無輸出的狀態。本實驗嘗試改變流道特性,並去測量不同的流道參數,一為使用兩邊擋板,還有再加入前方角柱的參數。實驗發現水翼前方加入角柱並同時使用兩邊的擋板的效果最好,能比彈簧最好的效果多加上1.81倍的增益,加上能量擷取時間大幅提升,之後的研究若能改善能樣擷取系統,效率會再有顯著的增加。 本實驗皆使用自持系統,將系統放置於水流中,不管是使用彈簧還是改變流道的方式,重點是不用增加外力就能讓此系統永久的往復運動於流道中,因為不用外加能量,對於能量擷取的效益也較大,加上實驗所使用之流道並不大,在現實生活中不管是溝渠或者小溪流皆有發展的可能性。 | zh_TW |
dc.description.abstract | The purpose of this study is to develop an environmentally friendly and self-sustaining energy harvesting system. The experimental system uses a lateral thrust generated by the hydrofoil at a high angle of attack to drive a linear motion mechanism. Ingeniously uses the water flow to change the angle of attack of the hydrofoil, so that the linear motion mechanism reciprocates, thereby driving the power generation mechanism. Preliminary results show that the developed energy extraction system is highly applicable and can be used in streams or channels.
The preliminary structure of the study wanted to use the hydrofoil to exercise energy extraction and to use the spring as a means of changing the angle of attack of the hydrofoil. The most important parameters are the spring-elastic coefficient of the swinging shaft position and the pitching motion. Using three different symmetrical wings, the energy extracted from the symmetrical wing of different shapes will not be different. Data shows that the NACA0012 is such a wing. The type has the best extraction energy and uses electromagnetic induction as the method of drawing energy. The best NACA0012 airfoil has a wingspan of 20 cm and a water flow speed of 0.26 volts per second with a voltage output of 12.11 (volts). After the measurement, the effect of the spring was found to be limited. As a result, the steering time was too long, and the energy extraction would have an excessive time to exhibit an output-free state. This experiment attempts to change the flow characteristics and measure different flow path parameters, one is to use the two side baffles, and the parameters of the front corner post are added. It is found that the addition of the corner post in front of the hydrofoil and the use of the baffles on both sides are the best. It can add 1.81 times more gain than the best effect of the spring, and the energy extraction time is greatly improved. With the system, the efficiency will increase significantly. In this experiment, the self-sustaining system is used to place the system in the water flow, whether it is using a spring or changing the flow path. The key point is that the system can be permanently reciprocated in the flow channel without increasing the external force, because no energy is needed, for energy. The benefits of the extraction are also large, and the flow path used in the experiment is not large. In real life, there is a possibility of development of ditches or small streams. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T08:06:50Z (GMT). No. of bitstreams: 1 ntu-108-R06543066-1.pdf: 13346841 bytes, checksum: bc438ed9a0f93bdc7b3903e6bbd9a19c (MD5) Previous issue date: 2019 | en |
dc.description.tableofcontents | 誌謝 i
中文摘要 ii Abstract iii 目錄 iv 圖目錄 viii 表目錄 xiv 第一章 緒論 1 1.1前言 1 1.2翼型能量擷取器文獻回顧 4 1.2.1翼型能量擷取器 4 1.2.2翼型能量擷取器運動分析 4 1.2.3翼型運動的參數 8 1.3研究背景與動機 9 1.4研究目標 9 第二章 基本理論 11 2.1介紹 11 2.2 雷諾數 11 2.3電磁感應 11 2.4負載測試 13 2.5阻尼分析[24] 14 2.6必歐-沙伐定律(Biot-Savart Law) 14 第三章 實驗方法 16 3.1實驗儀器及加工方法 16 3.1.1水洞 16 3.1.2CCD高速攝影設備 17 3.1.3滑軌 18 3.1.4雷射系統 19 3.1.5 水翼元件 21 3.1.6 軸承和軸心棒 22 3.1.7 軸心棒夾頭和夾頭夾具 23 3.1.8 攻角限制器 24 3.1.9 磁鐵及螺桿 25 3.1.10 電壓數據記錄器MCR4V 25 3.1.11 線圈裝置 26 3.2實驗流程 27 3.2.1水洞校正 27 3.2.2 雷射系統啟動步驟 28 3.2.3 主實驗流程 29 第四章 結果與討論 30 4.1簡介 30 4.2實驗參數 30 4.3能量擷取數據 30 4.4自持系統數據 31 4.4.1NACA0012翼型 31 4.4.2EPPLER472翼型 36 4.4.3NACA16012翼型 39 4.4.4自持系統效率整理 43 4.5改變流道數據 44 4.5.1阻擋物為直線板 46 4.5.2阻擋物為圓弧板 47 4.6前方加入阻擋物數據 48 4.6.1直線板加入前方障礙物 49 4.6.2曲面板加入前方障礙物 53 4.6.3前方障礙物轉向 57 4.6.4前方障礙物數據整理 64 4.7負載測試 67 4.7.1NACA0012使用前阻擋距離1弦長加上兩個10cm直線板 67 4.8其他參數變化 72 4.8.1改變攻角限制器 72 4.8.2 雷諾數的影響 72 4.8.3磁鐵排列最佳化 73 4.9 流場顯影與分析 75 4.9.1角柱後方尾流顯影 75 4.9.2角柱後方尾流顯影 76 4.9.3加入水翼流場顯影 80 第五章 結論與未來展望 82 5.1結論 82 5.2擺動軸位置 82 5.3彈簧選擇 82 5.4彈簧和擺動軸關係 82 5.5障礙物數據分析 83 5.6未來展望 83 參考文獻 84 | |
dc.language.iso | zh-TW | |
dc.title | 在均勻水流或角柱尾流中以水翼往復運動來擷取能量之初步研究 | zh_TW |
dc.title | A Preliminary Study of Energy Harvesting by a Hydrofoil Reciprocating across a Uniform Stream or in the Wake of a Triangular Cylinder | en |
dc.type | Thesis | |
dc.date.schoolyear | 107-2 | |
dc.description.degree | 碩士 | |
dc.contributor.coadvisor | 張建成(Chien-Cheng Chang) | |
dc.contributor.oralexamcommittee | 王繼宗,蘇正瑜,陳弘正 | |
dc.subject.keyword | 水翼,擺動軸,彈簧,角柱尾流,能量擷取器, | zh_TW |
dc.subject.keyword | hydrofoil,spring,wake of a Triangular Cylinder,energy harvester, | en |
dc.relation.page | 85 | |
dc.identifier.doi | 10.6342/NTU201903907 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2019-08-19 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 應用力學研究所 | zh_TW |
顯示於系所單位: | 應用力學研究所 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-108-1.pdf 目前未授權公開取用 | 13.03 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。