结冰对翼型及翼身组合体气动特性影响研究

摘要

飞机结冰是影响飞机飞行安全的重要因素之一,研究结冰对飞机气动性能的影响具有重要意义.应用多块结构化网格生成方法,通过求解雷诺平均N-S方程分别对翼型及DLR-F4翼身组合体干净外形和三种不同带冰外形的流场进行计算,分析不同冰型对翼型及翼身组合体绕流流场及气动特性的影响.%The icing problem affects the flight safety of aircraft, exploring the icing effect on aerodynamic performance for aircraft is very important. In the research, three different ice shapes are constructed:sharp - angled ice, blunt nosed ice and double horn ice. The multi- block technology was used to generate grid,the flows of icing models are simulated numerically by solving the Navier- Stokes equations. The results calculated are in good agreement with experimental data and show that our method is correct for the icing research.