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Journal of Applied Fluid Mechanics، جلد ۱۴، شماره ۵، صفحات ۱۵۱۱-۱۵۲۰
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عنوان انگلیسی Inlet Parameters Effects of Invelox on the Aerodynamic ‎Performance using Numerical ‎Simulation
چکیده انگلیسی مقاله Invelox is a structure that increases the wind velocity by collecting air from the higher level of ground. ‎Previous studies ‎showed that Invelox has the potential to capture air and increases the speed of wind, ‎which means more power output. ‎Although it was claimed that Invelox can capture air from all directions, ‎its performance greatly depends on the angle of ‎wind. In this study, the performance of Invelox is ‎analyzed and improved for different wind directions by changing the ‎number of blades. The results ‎showed, however, the aerodynamic performance of all proposed Inveloxes has decreased due to ‎increasing ‎the wind angle, the five-blade Invelox outperforms the original model in output power by ‎about 7%-20% in various wind directions. ‎Furthermore, in order to reduce air escaping from the opposite ‎side of Invelox, the length of the upper funnel has been increased. ‎Results showed about 12% improving ‎performance when the length of the upper funnel is equal to its diameter.‎ The three dimensional models ‎were analyzed by Ansys-Fluent, under steady-state conditions‎.
کلیدواژه‌های انگلیسی مقاله Invelox‎, ‎ Ducted wind turbine‎, ‎ Speed ratio‎, ‎ CFD‎, ‎ Efficiency improvement
نویسندگان مقاله A. Farokhzade |
Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

M. J. Maghrebi |
Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

نشانی اینترنتی https://www.jafmonline.net/article_1180_450bf11aaf90c43048015ae98c51051d.pdf
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