南京航空航天大学学报（英文版）2023，Vol.40Issue(2)：148-158,11.
飞机结冰中水滴撞击特性欧拉法的网格影响分析
Mesh Impact Analysis of Eulerian Method for Droplet Impingement Characteristics Under Aircraft Icing Conditions
摘要
Abstract
The research of super-cooled water droplet impingement characteristics is the basis of the ice shape prediction and the aircraft anti-icing system performance analysis.The Eulerian method is frequently used to compute the droplet motion and impingement characteristics,so it is significant to analyze the accuracy of the Eulerian method when calculating the droplet impingement on complex surfaces.Taking a NACA 0012 airfoil,an icing wind tunnel,an S-shape duct and a multi-element airfoil as the research objects,the Eulerian method is used with different meshes to obtain the water droplet motion and collection efficiency.The results show that when the water droplet is not deflected or blocked by upstream components,the results obtained by the Eulerian method are slightly affected by the mesh.However,the results calculated by the Eulerian method are mesh-dependent with upstream trajectory deflections,and the liquid water content and collection efficiency calculated using different meshes are inconsistent.The impact of the mesh on the calculation of the Eulerian method needs to be considered when droplets are affected by upstream effects.The findings of this research are beneficial for the accuracy of aircraft icing simulation.关键词
飞机结冰/水滴撞击特性/欧拉法/网格影响/数值模拟Key words
aircraft icing/droplet impingement characteristics/Eulerian method/mesh impact/numerical simulation分类
航空航天引用本文复制引用
赵文朝,宁义君,吴渊,申晓斌,林贵平..飞机结冰中水滴撞击特性欧拉法的网格影响分析[J].南京航空航天大学学报（英文版）,2023,40(2):148-158,11.基金项目
This work was supported in part by the National Natural Science Foundation of China(No.51806008),the Shenyang Key Laboratory of Aircraft Icingand Ice Protection,the Open Fund of Key Laboratory of Ro-tor Aerodynamics Key Laboratory(No.RAL202104-2),and the Open Fund of Key Laboratory of Icing and Anti/De-icing(No.IADL 20200307). （No.51806008）
