欧拉两相流法在翼型积冰中的应用

应用欧拉两相流理论对各种结冰气象条件下翼型积冰进行了数值模拟,采用格心型有限体积方法求解N-S方程来获得翼型的流场.对4°攻角下NACA0012翼型前缘的霜冰,明冰,混合冰进行了预测,最后将计算的结果和文献中实验数据进行对比,结果吻合良好,说明该方法是有效的.同时对积冰翼型的气动特性进行了分析,并比较了不同冰形对升、阻力的影响,计算结果显示明冰对气动特性的破坏最大.

The application of eulerian two-phase flow method in airfoil ice accretion

A numerical simulation method based on Eulerian Two-Phase theory was applied on airfoil under a variety of icing weather conditions. The flow field is calculated by solving the 2D N-S equations with cell-centered finite volume method. The Rime ice, Glaze ice and mixed ice were predicted on NACA0012 airfoil at 4 degree angle of attack. The simulated results agree very well with the refered experiment data, which indicates that the method is effective and correct. At last the aerodynamic characteristics of the iced airfoil was analyzed, compare different ice shape on the lift and drag coefficient, the results show that the Glaze ice has the most impact on aerodynamic characteristics.