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中文摘要：
雷诺数是影响翼型气动特性的主要参数之，当雷诺数在5×10^5—1×10^7范围内变化时，基于N-S控制方程，对S827翼型在攻角α为-14°—45°范围内变化时的气动特性进行数值计算，研究了雷诺数对该翼型的升力特性、阻力特性、最大升力系数、最大升阻比、流动分离特性、失速特性等气动特性的影响。
英文摘要：
Based on N-S control equation, the unsteady flowfield of the NREL S series airfoil S827 is simulated. The lift and drag coefficients and pressure distribution are obtained at the different angle of attack from -14°to 45°at the time when Reynolds number change from 5×10^5-1×10^7. And the effect on Reynolds number is studied on aerodynamic characteristics, such as the charaeteristics of lift coefficient and drag coefficient ,the maximum lift coefficient ,the maximum ratio of lift coefficient and drag coeffieient,the characteristics of the fluid separation,stall properties and so on.
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