摘要
依据飞行器表面液态水凝结过程的热力学理论分析,提出了一种适用于不同环境温度的翼型结冰数值模拟方法。采用中心型有限体积方法求解N-S方程来获得翼型的绕流流场,结合给出的结冰数值模拟方法对两种典型温度下的翼型积冰情况进行了模拟。模拟所得的积冰冰形与文献中的实验数据吻合良好,表明该方法的可行性,并进一步给出了翼型表面的冻结系数分布。
Based on the thermal theory analysis of the freezing process during water flowing pass the surface of aircraft, a numerical method which can deal with the ice accretion in various ambient temperatures is developed in this paper. The ice accretions on airfoil at two representative temperatures are simulated with the numerical method after the flowfield is gained by solving the N - S equations with central finite volume method. The simulated ice shapes agree well with the experiment data, which indicates the method is feasible. The freezing coefficient on the airfoil is also presented.
出处
《航空计算技术》
2008年第1期36-39,共4页
Aeronautical Computing Technique
关键词
积冰
热力学
数值模拟
气动性能
CFD
ice accretion
thermodynamics
numerical simulation
aerodynamic performance
CFD
