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Investigation of 3-Dimensional Effect on Double Multiple Streamtubes Model
|關鍵字:||垂直軸式風力發電機;Vertical-Axis wind turbine;雙制動盤多流管理論;三維效應;Double-Multiple Streamtube Theory;Three-dimension effect||出版社:||機械工程學系所||引用:||Darrieus GJM. “Turbine having its rotating shaft transverse to the flow of the current,” US Patent No.1.835.018, 1931. Templine, R.J. “Aerodynamic Performance Theory for the NRC Vertical-Axis Wind Turbine,” N.A.E Report LTR-LA-160, June 1974. Strickland, J.H., “The Darrieus Turbine : A Performance Prediction Model Using Multiple Streamtube,” Sandia Laboratories Report SAND75-0431, October 1975. Fanucci, J.B.and Walters, R.E., “Innovative Wind Machines : The Theoretical Performances of a Vertical-Axis Wind Turbine,” Proceedings of the Vertical-Axis Wind Turbine Technology Workshop, Sandia Laboratory Report SAND76-5586, May 1976, pp.III-61-93. Strickland, J.H.,Webster, B.T. and Nguyen, T., “A Vortex Model of the Darrieus Turbine : An Analytical and Experiment Study,” Journal Fluids Engineering, Vol.101, December 1979, pp.500-505. Paraschivoiu, I., “Double-Multiple Streamtube Model for Darrieus Wind Turbines,” Second DOE/NASA Wind Turbines Dynamics Workshop, NASA CP-2185, Cleveland, Ohin, February 1981, pp. 19-25 M. Islam, D. S. K. Ting, and A. Fartaj, “Aerodynamic models for Darrieus-type straight-bladed vertical axis wind turbines,” Renewable and Sustainable Energy Reviews, vol. 12, pp. 1087-1109, 2008 Prandtl, L., “Applications of Modern Hydrodynamics to Aeronautics,” NACA TR 116, 1921. McCormick, B. W.,Aerodynamics, Aeronautics and Flight Mechanics, Wiley, New York, 1995. Anderson, J. D., Fundamentals of Aerodynamics, McGraw–Hill, New York, 2007. Viterna, L .A., and Corrigan, R. D., “Fixed Pitch Rotor Performance of Large Horizontal Axis Wind Turbines,” DOE/NASA Workshop on Large Horizontal Axis Wind Turbines, Cleveland, Ohio, July 1981. Viterna, L .A., and Janetzke, D. C., “Theoretical and Experimental Power from Large Horizontal-Axis Wind Turbines,” NASA TM-82944, Sept 1982. Ostowari, and Naik, D., “Post-Stall Wind Tunnel Data for NACA 44XX Series Airfoil Sections”, a Subcontract Report, SERI/STR-217-2559, Solar Energy Research Institute, Goledn Colorado, January 1985. J. H. Strickland, B. Webster, and T. Nguyen, “Vortex model of the Darrieus turbine: An analytical and experimental study, ” NASA STI/Recon Technical Report N, vol. 80, pp. 25887, 1980. Masse, B. , “Description de deuz programmes d''ordinateur pour le calcul des performances et des charges aerodynamiques pour les eoliennes a axe vertical,” Institut de recherche de l''Hydro-Quebec, 1981. Richard B. Noll, N. D. Ham, “Dynamic Stall of Small Wind Systems,” Aerospace Systems Inc., Rept, February 1983. 黃信豪, “動態失速模型在Double Multiple-Streamtubes模型之應用與探討”, 中興大學機械系碩士論文, 中華民國101年7月 Willmer, A.C., “Aerodynamic Investigation into the Feasibility of a 25 m Vertical-Axis Windmill,” Aero Rt. 124, BAe Filton, England, July 1979. Kirk Gee Pierce, “Wind Turbine Load Prediction Using the Beddoes-Leishman Model for Unsteady Aerodynamics and Dynamic Stall,” Department of Mechanical Engineering, The University of Utah, August 1996. J.W. Larsen, S.R.K. Nielsen, S. Krenk, “Dynamic stall model for wind turbine airfoils,” Journal of Fluids and Structures, vol. 23, Issue 7, October 2007, pp. 959–982 M. H. Hansen, M. Gaunaa, and H. A. Madsen, “A Beddoes-Leishman type dynamic stall model in state-space and indicial formulations, ” Riso-r-1354 (en), Riso National Laboratory, Roskilde, Denmark, 2004. Jason Gibbs, “Experimental Determination of Lift and Lift Distributions for Wings In Formation Flight,” Master of Science in Engineering Mechanics of Blacksburg, VA, January 25th, 2005.||摘要:||
計算成本高昂以及精確性難以掌握是以計算流體力學預測垂直軸式風力發電機氣動力最重要的問題，利用數學模數取代為最有效的方法。雙制動盤多流管模型為目前預測垂直軸式風力發電機氣動力最為精確之理論，接續前人使用動態失速理論對DMST修正，本論文考慮翼尖渦流對氣動力的影響，將升力線理論、Viterna & Corregian 失速模型導入經動態失速修正之雙制動盤多流管模型中。考慮不同翼展位置之氣動力效應不同，將垂直軸風力發電機依翼展方向分割成多個流層，並利用計算流體力學做為虛擬風洞，比較在風速為12 m/s下，不同尖端速度比之修正結果。
Costly computation cost and uncerrtainly accuracy are the important issue of CFD to predict aerodynamics of vertical-axis wind turbine. A mathematical modulus is the most effective method. Double-Multiple Streamtube Theory is the most accurate theory adopt by industries currently. For the continuity of the modification made by dynamic stall models, this paper focused on effect of the spanwise variation of the aerodynamics due to the vortex generated at wing tip on vertical wind turbines. To achieve this goal, the blade was divided spanwise into multiple streams layer, and the lifting line theory and Viterna & Corregian stall model was used to modified DMST in each stream layer. A computer program was written accordingly and a CFD was used as virtual wind tunnel to compare the effect at wind speed of 12 m/s with different tip speed ratio.
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