Unsteady Surface Pressures and Airload of a Pitching Airfoil

被引：4

作者：

Worasinchai, Supakit ^{[1
]}

Ingram, Grant ^{[2
]}

Dominy, Robert ^{[2
]}

机构：

[1] Natl Met & Mat Technol Ctr MTEC, 114 Paholyothin Rd, Klongluang 12120, Pathumthani, Thailand

[2] Univ Durham, Sch Engn & Comp Sci, Durham DH1 3HP, England

来源：

10TH ECO-ENERGY AND MATERIALS SCIENCE AND ENGINEERING SYMPOSIUM | 2013年 / 34卷

关键词：

Airfoil; Dynamic performance characteristics; Low Reynolds number; Vortex formation;

D O I：

10.1016/j.egypro.2013.06.769

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents unsteady surface pressure variations of a symmetrical NACA0012 section commonly used on Vertical-axis wind turbine blades. The section was tested at a Reynolds number of 90,000, mean incidence angles of 15 degrees and -15 degrees, and a reduced frequency of 0.20. The experimental results show that the airfoil motion had significant effects on surface pressure distribution over the airfoil, leading to a formation and shedding of an energetic leading edge vortex which strongly affects the overall airload over the incidence range. (C) 2013 The Authors. Published by Elsevier B.V

引用

页码：407 / 416

页数：10

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