中文摘要：

为了探究提高H型风轮自启动特性的方法,利用全迎角范围的翼型气动数据理论分析H型风轮的静扭矩特性,包括不同雷诺数条件下风轮的静扭矩随相位角的变化规律,升力和阻力分别对静扭矩的贡献,分析表明,相对于对称翼型,采用非对称翼型的叶片更有利于提高风轮的自启动特性.在对称翼型尾缘添加Gurney襟翼可以增加翼型的有效弯度,分别对有无添加襟翼的三叶片H型风轮在低速风洞进行测试,试验结果验证了理论分析结论,此外还得出随着雷诺数的增加,非对称翼型提高风轮自启动特性的优势减弱.

英文摘要：

In order to explore method to improve self-starting capability of H-Darrieus wind turbine, theoretical analysis of static torque characteristic is carried out with aerodynamic data of airfoil at the angle of attacks in the range of [？180,180], including Reynolds number effect and contribution of lift and drag to static torque. The analysis shows that compared to blade using asymmetric airfoil,the blade using symmetric airfoil benefits the self-starting characteristic of the rotor. The effect of Gurney flap attached to the trailing edge increases the effective camber of the airfoil. A three-bladed H-Darrieus turbine with or without Gurney flaps is tested in a low-speed wind tunnel, the theoretical analysis result is validated by test result, moreover,the test result indicates that as Reynolds number increases, the superiority of the asymmetric airfoil in terms of improving self-starting capacity becomes less pronounced.