南京航空航天大学学报2011，Vol.43Issue(5)：693-696,4.
雷诺数对粗糙表面翼型气动性能的影响
Effects of Surface Roughness and Reynolds Number on Aerodynamic Performance of Wind Turbine Airfoil
摘要
Abstract
The Spalart-Allmaras turbulence model is used to investigate the aerodynamic performance of a wind turbine airfoil DU00-W-212. Numerical simulation results show different performances both rough and smooth airfoil when Reynolds number changes in a small region. The effect of Reynolds number on aerodynamic performance of rough airfoil are studied. The curve of lift-drag coefficients reveals that the roughness is an important influencing factor upon the lift coefficient at attack angle of approximately 10°. Lift coefficient will descend and drag coefficient will ascend because of the rough leading edge at a small attack angle. However, the drag coefficient of a smooth airfoil is higher than that of the rough air-foil when the airfoil has gone into stall conditions. The region of the attack angle with the highest lift coefficient has to be avoided in the design proposal, thus improving the capability of the blade adapted to the harsh dust storm.关键词
风力机/翼型/粗糙度/雷诺数Key words
wind turbine/ airfoil/ roughness concentrations/ Reynolds number分类
能源科技引用本文复制引用
李仁年,陈寅..雷诺数对粗糙表面翼型气动性能的影响[J].南京航空航天大学学报,2011,43(5):693-696,4.基金项目
国家重点基础研究发展计划(“九七三”计划)(2007CB714605)资助项目. （“九七三”计划）
