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Improved Design of a S809 Airfoil Based on Variable-Domain Variational Finite Element Method
Author(s): 
Pages: 779-782
Year: Issue:  5
Journal: Journal of Engineering Thermophysics

Keyword:  风力机 气动反设计 升力系数;
Abstract: 翼型的升力和阻力特性直接影响到叶轮机或机翼的性能,传统风力机翼型的外形是基于经验和半经验的方法得到,本文采用变域变分有限元方法,以NRELS809翼型为原形,通过改进其叶片表面的目标压力分布,进行该翼型的改进设计,并对新设计出的翼型在0°~20°攻角范围内进行CFD数值模拟,得到的结果与原始S809翼型在升阻力系数、失速性能等方面进行对比,结果表明改进的S809具有更好的气动性能。
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