【作者】 易贤； 王开春； 马洪林； 朱国林；

【Author】 Yi Xian Wang Kaichun Ma Honglin Zhu Guolin (China Aerodynamic Research and Development Center,Mianyang 621000,China)

【机构】 中国空气动力研究与发展中心；

【摘要】 发展了采用全三维手段计算结冰表面过冷水滴撞击特性的欧拉算法。并研制了相应的计算软件 IRC3D。空气流场计算采用 SIMPLE 算法,水满收集率通过用有限体积法离散求解欧拉构架下的水滴相方程获得。对三维圆柱和平直机翼表面局部收集率进行了计算,计算结果与实验及文献结果吻合.说明本文方法可应用于实际型号的结冰分析。最后,采用 IRC3D 对某支线飞机全机表面的水滴撞击特性进行了计算.得到了局部收集率的分布规律。更多还原

【Abstract】 A three dimensional Eulerian method to compute impingement on icing surface is presented in the paper.IRC3D,an icing code is then developed.In the code,flowfield of air is calculated with the Simple method,and the collection efficiency is obtained by solving the droplet conservation e- quations in Eulerian frame,local catch coefficient on a three dimensional cylinder and a NACA0012 straight wing are computed.The results agree well with correspond data of experiments and references, which indicates that the present method can be applied in engineering icing analysis.In the end, IRC3D is used to compute the collection efficiency on the whole surface of a feeder liner.Then the distribution rules of impingement are yielded.更多还原