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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 鄭榮和(Jung-Ho Cheng) | |
| dc.contributor.author | Yao-Ting Tsai | en |
| dc.contributor.author | 蔡耀庭 | zh_TW |
| dc.date.accessioned | 2021-06-15T02:34:05Z | - |
| dc.date.available | 2012-08-18 | |
| dc.date.copyright | 2009-08-18 | |
| dc.date.issued | 2009 | |
| dc.date.submitted | 2009-08-14 | |
| dc.identifier.citation | [1] InfraVest GmbH 網站 http://www.infra-vest.com
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[21] Kirke, B.K., “Evaluation of Self-Staring Vertical Axis Wind Turbines for Stand-Alone Applications,” Grifftth univerisity, 1998. [22] Nobuyuki Fujisawa, Satoshi Shibuya, “Observations of dynamic stall on Darrieus wind turbine blades,” Journal of Wind Engineering and Industrial Aerodynamics, Japan, 2000. [23] M.C. Claessens, “The Design and Testing of Airfoils for Application in Small Vertical Axis Wind Turbines,” Delft University of technology, 2006. [24] D. You AND P. Moin, “Large-eddy simulation of flow separation over an airfoil with synthetic jet control,” center for Turbulence Research Annual Research Briefs, 2006. [25] 楊淳宇，“大尺度渦漩模擬在垂直軸風力發電機之應用”，國立臺灣科技大學機械所碩士論文，2007。 [26] Akiyoshi Iida, Keiichi Kato and Akisato Mizuno ,“Numerical Simulation of Unsteady Flow and Aerodynamic Performance of Vertical Axis Wind Turbines with LES,” Kogakuin University, 2007. [27] DreeseCode公司網站http://www.dreesecode.com/ [28] FLUENT官方網站 http://www.fluent.com/solutions/index.htm [29] T. Burton, D. Sharpe, N. Jenkins and E. Bossanyi, “Wind Energy Handbook,” John Wiley & Sons, Ltd, pp.42-45, 2001. [30] 胡斯遠，“新型流道式風力發電機組之研發設計”，國立台灣大學機械工程學研究所碩士論文， 2005。 [31] http://www.windturbine-analysis.netfirms.com/ [32] John Tuzson, “Centrifugal Pump Design,” John Wiley & Sons, Inc., 2000. [33] 李盈宏，“離心式高轉速鼓風機設計與數值模擬研究”，國立台灣大學機械工程學研究所碩士論文， 2007。 [34] Migliore, P., Wofle, P., and Fanucci, J., “Flow curvature effect on darrieus tubrine blade aerodynamics,” Journal of Energy, 4(2):49–55, 1980. [35] Patankar S. V.,and Spalding D. B.,“A Calculation Procedure for Heat Mass and Momentum Transfer in Three-Dimensional Parabolic Flows,” International Journal of Heat Mass Transfer, Vol. 15, pp. 1787-1806,1972. [36] FLUENT 6.3 Documentation, Fluent Inc. [37] 黃博全，“ 流體機械”，曉園出版社，1993。 [38] H. K. Versteeg and W. Malalasekera, “An Introduction to Computational Fluid Dynamics – The Finite Volume Method,” Longman Group, Ltd, pp.1-84, 1995. [39] J. Blazek, “Computational Fluid Dynamics: Principles and Applications,” Elsevier Science, pp.225-255, 2001. [40] 江哲銘、陳清焰與周伯丞等，“空氣流場預測在輔助建築設計之應用—採用CFD數值模擬技術”，中華民國建築學會第十二屆建築研究成果發表會論文集，2000。 [41] 林家緯，“低風阻車輛外型設計方法”，國立台灣大學機械工程學研究所碩士論文，2006。 [42] J. D. Anderson, “Computational Fluid Dynamic – The Basics with Applications,” McGraw-Hill, Inc. pp.200-215, 1995. [43] William H. Rae and Alan Pope, “Low-Speed Wind Tunnel Testing,” Second edition, John Wiley & Sons, pp.370-374, 1984. [44] Tellervo Brandt, “A Posteriori Study on Modelling and Numerical Error in LES Applying the Smagorinsky Model,” Finland, 2005. [45] Ira H. Abbott and Albert E. Von Doenhoff, “Theory of Wing Sections: Including a Summary of Airfoil Data,” Dover, pp.482-483, 1959. [46] B.F. Blackwell, R.E. Sheldahl, L.V. Feltz, “Wind tunnel performance data for the Darrieus wind turbine with NACA 0012 blades,” SAND76-0130, 1976. [47] N Hill,R Dominy,G Ingram and J Dominy, “Darrieus turbines: the physics of self-starting,” Durham University,2008. [48] Sheldahl, R. E. and Klimas, P. C., “Aerodynamic characteristics of seven symmetrical aerofoil sections through 180-degree angle of attack for use in aerodynamic analysis of vertical axiswind turbines, ” SAND80-2114, Sandia National Laboratories, 1981. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43956 | - |
| dc.description.abstract | 在風力發電機中，葉片是很重要的元件，葉片負責把大自然中的風能轉換成轉動的機械能，其性能對於整個風力發電機系統效率影響很大，因此研究如何獲得葉片在流場中的表現成為一個重要的課題。
本研究利用CFD分析軟體，針對垂直軸式風力發電機葉片流場提出一套有效的數值模擬方法，可以同時適用於Savonius型以及Darrieus型兩種主要垂直軸式葉片。對於葉片流場紊亂狀況進行觀察探討，根據分析結果，使用二維暫態之大尺度渦流模擬可成功模擬出Savonius型葉片的效能趨勢，透過三維LES暫態模擬Savonius型葉片Cp模擬與實驗誤差為3%以下。在Darrieus型葉片研究部分，使用LES二維暫態模擬亦可正確模擬葉片的效能趨勢，證實本研究所提出之方法可有效模擬垂直軸式風力發電機葉片之流場變化，可以用在未來改良設計之參考。 在實測方面，利用自行設計製造的風洞，進行風洞量測實驗，先校正測試段的風速，再進行垂直軸式風力發電機葉片之風洞實驗，成功驗證風洞實驗的準確性，並獲得風機的數據及特性。 | zh_TW |
| dc.description.abstract | Wind turbine blades play an important role to convert wind energy into mechanical rotation. Blades design has a tremendous influence on the efficiency of wind turbines. Therefore, this thesis addresses an important question of how to obtain the blades performance in flow field.
CFD was used in this work to simulate flow field, and provide an effective way of numerical simulation which is suitable both for Savonius-type and Darrieus-type Vertical Axial Wind Turbine (VAWT). Starting with observing and analyzing the blade’s disordered flows, the Savonius-type blades’ efficiency trend is able to be obtained by using two-dimensional of large eddy simulation. Moreover, the error of the value of Cp comparing to the experimental results is capable to reach below 3% by 3D LES simulation. In the study of Darrieus-type blades, the blade’s efficiency trend being accurately predicted by utilizing 2D LES simulation verifies that the method provided in this thesis is capable to effectively simulate the changing in the flow field of the VAWT blades. This simulation based modeling methodology can be used to design and improve wind turbines’ performance in the future. For experimental verification, a wind tunnel was designed and constructed to conduct the VAWT’s wind-tunnel testing. The first step was to adjust the testing wind speed, and then conduct the VAWT’s wind-tunnel testing. Data and characteristic of the wind turbine were obtained while the wind-tunnel testing was successfully verified. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T02:34:05Z (GMT). No. of bitstreams: 1 ntu-98-R96522501-1.pdf: 9437490 bytes, checksum: abd8b40b7b6ccf7d190089d110ac544b (MD5) Previous issue date: 2009 | en |
| dc.description.tableofcontents | 致謝 I
摘要 II Abstract III 目錄 V 圖目錄 VIII 表目錄 XIII 第一章 緒論 1 1.1 研究背景與動機 1 1.2 風力發電機概論 3 1.2.1 各式風力發電機簡介 3 1.2.2 垂直軸式風力發電機 5 1.3 文獻回顧 7 1.3.1 Savonius型風機葉片 7 1.3.2 Darrieus型風機葉片 8 1.4 研究目的 11 1.5 研究方法與論文內容架構 11 1.6 使用軟體簡介 13 第二章 流場理論模式 15 2.1 基本理論方程式 15 2.1.1 驅動盤理論 (Actuator Disc Theory) 15 2.1.2 Basic Darrieus wind turbine aerodynamic 18 2.2 風機流場現象 20 2.2.1 流體分離(separation) 20 2.2.2 動態失速(dynamic stall) 21 2.2.3 虛擬彎度(virtual camber) 22 2.3 CFD數值求解方法 22 2.3.1 統御方程式 23 2.3.2 紊流模式 25 2.3.3 離散法則 28 2.3.4 SIMPLE method 30 2.3.5 CFD分析步驟 31 2.4 可調式網格方法 32 第三章 Savonius型風機葉片模擬分析與風洞實驗 37 3.1 二維Fluent暫態模擬分析驗證 37 3.1.1 流場模型的建立 37 3.1.2 二維風機葉片分析驗證 38 3.1.3 幾何模型與網格生成 39 3.1.4 邊界設定與收斂標準 41 3.1.5 流場邊界效應與網格獨立分析 42 3.1.6 結果討論 44 3.2 三維暫態模擬分析驗證 46 3.3 葉片外型分析 48 3.4 小型風洞量測實驗 51 3.4.1 小型風洞製作、校正 51 3.4.2 小型風洞實驗裝置 56 3.4.3 選擇實驗葉片型式 57 3.4.4 小型風洞實驗驗證 58 3.4.5 實驗結果討論 60 3.5 Savonius風機製作與實測 62 3.6 結論 68 第四章 Darrieus型風機葉片模擬分析與風洞實驗 69 4.1 葉片翼截面升阻力係數模擬驗證 69 4.2 二維動態網格驗證與分析 74 4.3 分析結果與改良設計 77 4.4 小型風洞實驗 81 第五章 Darrieus葉片製作與風機實驗量測 85 5.1 複材葉片製作 85 5.2 實驗量測 90 第六章 結論與建議 93 6.1 成果總結 93 6.2 未來建議與改進方向 94 參考文獻 97 | |
| dc.language.iso | zh-TW | |
| dc.title | 小型垂直軸風力發電機葉片外型設計與數值模擬研究 | zh_TW |
| dc.title | Design and Numerical Analysis of Small Vertical Axis Wind Turbine Blades | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 97-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 顏瑞和(Ruey-Hor Yen),陳希立(Sih-Li Chen) | |
| dc.subject.keyword | 垂直軸式風力發電機,計算流體力學,大尺度渦流模擬,Savonius型風力發電機,Darrieus型風力發電機,風洞實驗, | zh_TW |
| dc.subject.keyword | Vertical Axis Wind Turbine,CFD,LES,Savonius wind turbine,Darrieus wind turbine,wind tunnel experiment, | en |
| dc.relation.page | 100 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2009-08-14 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
| 顯示於系所單位： | 機械工程學系 | |
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