本研究針對本實驗室所設計之第二代風力發電機所使用之翼型 : LS(1)-0417翼剖面之葉片，進行靜態量測其氣動力特性，透過在葉片上表面設置渦流產生器以及在翼前緣裝至砂紙等等，來改善其在較大攻角範圍下之氣動力性能。
第二代風力機為無可變俯仰角機構之設計，是由三或六片LS(1)-0417葉片組成，葉片弦長0.15公尺、高度1.2公尺，風力機直徑為1.2公尺，為改善及抑制葉片於高攻角下氣流分離之情形，針對此翼型進行渦流產生器之設計，經由油流實驗初步觀察其效果，並以進行表面壓力分佈量測，並以DMS進行靜態扭力計算。
而根據結果，在來流速度6.57m/s時，在紊流條件下之計算靜態扭力較均勻流場下表現較好，約可達2~4倍左右。而將VG裝設在某些位置時在來流6.57m/s及9.44m/s時有較原始構型佳之結果。

For more understanding of the aerodynamic performance of the second generation VAWT, experiments were carried out to measure the surface pressure distribution of the airfoil that used by the VAWT.
The VAWT is consist of three or six straight blades, each blade is 1.2m in height, 0.15m in chord length and 1.2m in diameter. The vortex generators and sandpapers had been applied on the upper surface and leading edge respectively, of the airfoil for improving its performance.Through the oil flow visualization and surface pressure measurement experiments, we can get and compare the aerodynamic and visualization results. And, the starting torque by calculating aerodynamic results in double-multiple streamtube method is presented.
According to the results, the starting torque in turbulent condition is 200% to 400% greater than without grid when U=6.57m/s, for in some configurations, Installing VGs can improve the performance under the present conditions of U=6.57m/s and 9.44m/s.

[1] 經濟部能源局,　2012年能源產業技術白皮書, 2012.
[2]GWEC, “Annual Market Update 2012 ”, Global Wind Report2012, pp.9,2012.
[3] Islam, I., Ting, D.S.K. and Fartaj A., “Design of A Special-Purpose Airfoil For Smaller-Capacity Straight-Bladed VAWT”, Wind Engineering Vol. 31, NO. 6, 2007, pp. 401–424.
[4] Shikha, T.S. Bhatti and Kothari, D.P., “Early Development of Modern Vertical and Horizontal Axis Wind Turbines:A review”, Wind Engineering, Vol. 29, No. 3,2005, pp. 287-299.
[5] Manwell, J.F., McGowan, J.G. and Rogers, A.L., “Wind Energy Explained 1st ed”, Wiley,2002, pp.10-20.
[6] Savonius, S.J., “The S-Rotor and Its Applications”, Mechanical Engineering, Vol. 53, No. 5, pp. 333-338, 1931.
[7] Ushiyama, I., “Experimentally Determining the Optimum Design Configuration”, Proceedings of The International Conference on Solar and Wind Energy, Beijing, 1985.
[8] Sabzevan, A., “Performance Characteristics of Concentrator Augmented Savonius Wind Rotors”, Wind Engineering, Vol. 1, pp. 198-206, 1977.
[9] Peace, S., “Another Approach to Wind (cover story)”, Mechanical Engineering, Vol. 126, No. 6, pp. 28-31, 2004.
[10] Darrieus G.J.M., United States Patent, No. 1835018, 8 Dec, 1931.
[11] Tabassum, S.A. and Probert, S.D., “Vertical Axis Wind turbine: A Modified Design”, Applied Energy, Vol. 28, No. 1, pp. 59-67, 1987.
[12] Carlin, P.W., Laxson, A.S.and Muljadi, E.B., “The History and State of The Art of Variable-Speed Wind Turbine Technology”, National Renewable Energy Laboratory, Technical report: NREL/TP-28607, 2001.
[13] Mays I.D. and Morgan, C.A., “The 500kW VAWT 850 Demonstration Project. In: Proceedings 1989 European Wind Energy Conference”, Glasgow, Scotland, pp. 1049–1053, 1989.
[14] Van Beek J., “Keeping Antarctica Pollution Free”, Windpower Monthly, Holland,Mar 1990.
[15 Brothers, C., “Vertical Axis Wind Turbines for Cold Climate Applications”, Renewable Energy Technologies in Cold Climates, Montreal, 1998.
[16] Iida, A., Mizuno, A., Fukudome, K., “Numerical Simulation of Aerodynamic Noise Radiated Form Vertical Axis Wind Turbines”, Proceedings of ICA2004, the 18th international congress on acoustics, Kyoto, Japan, 2004.
[17] Kirke, B.K. and Lazauskas L., “Limitations of Fixed Pitch Darrieus Hydrokinetic Turbines and The Challenge”, Renewable Energy, Vol. 36, No. 3, 2011.
[18] 蔡易達, ”垂直軸風力機性能與尾流區特性之實驗研究”, 成功大學碩士論文, 2011.
[19] Paraschivoiu, I., Trifu, O. and Saeed, F., “H-Darrieus Wind Turbine With Blade Pitch Control”, International Journal of Rot 1ating Machinery, Vol. 2009, Article ID 505343, 2009.
[20] Islam M., Fartaj A. and Carriveau R., “Analysis of the Design Parameters Related to A Fixed-Pitch Straight-Bladed Vertical Axis Wind Turbine”, Wind Engineering, Vol. 32, No. 5, pp. 491-507, 2008.
[21] Gad-el-Hak, M. and Bushnell, D.M., “Separation Control: Review”, J Fluids Eng, Vol. 113, pp.5-30, 1991.
[22] Chang, P.K., ”Control of Flow Separation”, Washington, DC, Hemisphere Publishing Corporation, 1976
[23] Haines, A.B., “Know Your Flow: The Key to Better Prediction and Successful Innovation”, 36th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, AIAA Paper 98-0221, January 12-15, 1998.
[24] Taylor, H.D., “The Elimination of Diffuser Separation By Vortex Generators”, United Aircraft Corporation Report, No. R-4012-3, June 1947.
[25] Calarese, W., Crisler, WP. and Gustsfson, GL., “Afterbody Drag Reduction by Vortexgenerators”, AIAA 23rd Aerospace Sciences Meeting, Reno, NV, AIAA Paper 85-0354, January 14-17, 1985.
[26] Clara, M. V., Martin, O. L. H. and Knud, E. M., “Evaluation of The Performance of Vortex Generators on the DU 91-W2-250 Profile using Stereoscopic PIV”, Department of Mechanical Engineering, Technical University of Denmark, 2008.
[27] Keiko, F.,Masashi, W., Akiyoshi, I. and Akisato, M., “Separation Control of High Angle of Attack Airfoil for Vertical Axis Wind Turbines,” Graduate School of Engineering and Department of Mechanical Engineering, Kogakuin University, Japan, 2004.
[28] Heine, B., Mulleners, K. and Gardner, A., “On the Effects of Leading edge Vortex Generators On An OA209 airfoil”, H. Mai Deutsches Zentrum fur Luft und Raumfahrt (DLR), Bunsenstrae 10, 37073 Gottingen.
[29] John, C. L., “Review of Research on Low-Profile Vortexgenerators to Control Boundary-Layer Separation,” Flow Physics and Control Branch, NASA Langley Research Center, Hampton, VA 23681-2199, USA, Progress in Aerospace Sciences 38, pp. 389–420, 2002.
[30] Kerho, M., Hutcherson, S., Blackwelder, RF. and Liebeck, RH., “Vortexgenerators Used to Control Laminar Separation Bubbles”, J Aircr, Vol.30, No. 6, pp.315-319, 1993.
[31] Kuethe, A.M., “Effect of Streamwise Vortices on Wake Properties Associated With Sound Generation”, J Aircr, Vol. 9, No. 10, pp. 715-719, 1972.
[32] J.C. Lin, , “Control of Turbulent Boundary-Layer Separation Using Micro-vortexgenerators”, 30th AIAA Fluid Dynamics Conference, Norfolk, VA, AIAA Paper 99-3404, June 28–July 1, 1999.
[33] Jørgensen, F. E.,”How to Measure Turbulence with Hot-wire Anemometers. a practical”, Dantec Dynamics, 2002.
[34] 張國治, “穿音速機翼空氣動力特性之風洞實驗研究”, 成功大學碩士論文, 1996.
[35] Maltby, R L.,”Flow Visualization in Wind Tunnels Using Indicators”, AGARDograph 70, Apr 1962.
[36] Steven D. M.,” Lift, Drag And Moment of A NACA 0015 Airfoil,” Department Of Aerospace Engineering The Ohio State University, 28 May 2008.
[37] John, J. B. and Russell, M. C., ”Aerodynamics For Engineers,” PEASON Education, 2009, pp.125-126.
[38] Scott, R., Keith, M. And John M. C., ”Ansys Workench Tutorial-Flow Over an Airfoil”, Penn State University, Jan. 2011.
[39] Robert J. and William, D., ”Low-Speed Aerodynamic Characteristics of A 17-Percent-Thick Airfoil Section Designed For General Aviation Applications”, NASA TN-7428, Dec, 1973.
[40] Wilson R.E. and Lissaman, P.B.S., “Applied Aerodynamics of Win Power Machines”, Oregon State University, May, 1974.
[41] Strickland, J. H., “A Performacnce Prediction Model For The Darrieus Wind Turbines”, International symposium on wind energy systems, Cambridge, UK, September 7-9, pp.C3-39-54, 1976.
[42] Paraschivoiu, I., “Double-Multiple Streamtube Model For Darrieus Wind Turbines”, Second DOE/NASA wind turbines dynamics workshop, NASA CP-2186, Cleveland, OH, Ferbruary, pp. 19-25, 1981.
[43] Mazharul, I., David, S.K.and Ting, A. F., "Aerodynamics Models For Darrieus-Type Straight-Bladed Vertical Axis Wind turbines", Department of Mechanical, Automotive and Materials Engineering, University of Windsor, Windsor, Ont., Canada N9B 3P4Received 20 October 2006, accepted 31 October 2006.
[44] 許家哲, “探討不同縫寬開縫圓柱尾流受紊流強度之影響”, 成功大學碩士論文, 2011.
[45] 梁士毅, “垂直軸風力機性能與啟動鈕力提升之實驗研究”, 成功大學碩士論文, 2012.