摘要
采用非贴体笛卡尔网格及有限体积法求解Euler方程的方法对两个模型的气动特性进行了计算,并考虑粘性项对阻力结果进行了修正,将修正后的计算结果与风洞试验值进行对比分析,结果表明:修正后的CFD计算值与风洞试验值吻合较好,验证了在气动设计中笛卡尔网格方法具有计算精度高、求解速度快的特点,适用于气动方案初步设计阶段的实际工程应用。
This paper adopts the way of non-body-fitted Cartesian grid and finite volume method for solving Euler equation to calculate the aerodynamic characteristics, and corrects drag result with giving consideration to viscosity term. The corrected calculation result is analyzed by comparing with wind tunnel test value. The result shows： the corrected CFD calculation value fits wind tunnel test value well, so it demonstrates that Cartesian grid method features high calculation accuracy and fast solving speed, and is applicable to the practical engineering application of aerodynamic scheme in initial design stage.
出处
《教练机》
2017年第3期16-20,共5页
Trainer
