跨音速风扇叶片变转速混合相积冰机制研究  

Study on the Mechanism of Mixed-phase Ice Accretion in the Variable Speed of Transonic Fan Blade

作　　者：任虎虎 徐强仁 王立志 李广超[1] 赵巍 赵庆军[2,3,4,5] REN Huhu;XU Qiangren;WANG Lizhi;LI Guangchao;ZHAO Wei;ZHAO Qingjun(School of Aero-engine,Shenyang Aerospace University,Shenyang 110136,China;Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;Key Laboratory of Light-Duty Gas-Turbine,Chinese Academy of Sciences,Beijing 100190,China;School of Aeronautics and Astronautics,University of Chinese Academy of Sciences,Beijing 100049,China;Beijing Key Laboratory of Distributed Combined Cooling Heating and Power System,Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]沈阳航空航天大学航空发动机学院,沈阳110136 [2]中国科学院工程热物理研究所,北京100190 [3]中国科学院轻型动力重点实验室,北京100190 [4]中国科学院大学航空宇航学院,北京100049 [5]分布式冷热电联供系统北京市重点实验室,北京100190

出　　处：《工程热物理学报》2025年第3期752-760,共9页Journal of Engineering Thermophysics

基　　金：国家科技重大专项(No.J2019-Ⅱ-0016-0037,No.J2019-Ⅲ-0010-0054)。

摘　　要：为了获得转速对跨音速风扇转子叶片混合相积冰的影响规律,采用FENSAP-ICE软件对风扇转子叶片表面的积冰进行数值模拟研究。结果表明:风扇叶片在高转速情况下,积冰主要在压力面生成,过冷水滴与冰晶在流道中的速度从前缘至尾缘先增加后减小,收集系数自前缘至尾缘先增加,后减少,转速越高,水膜所受的离心力与气动力增大,水膜在前缘后再结冰,致使叶身的积冰厚度比前缘更厚;此外,表面未融化的冰晶由于过冷水在叶片上形成的水膜也被吸附收集,尾缘处水膜不存在的区域由于温度高于冰点,冰晶融化后吸附于尾缘形成积冰。通过对风扇转子叶片高转速混合相积冰的数值模拟,为飞行器高空飞行时预测风扇转子叶片混合相积冰提供了理论支撑。In order to obtain the influence of speed on the mixed-phase ice accretion of transonic fan blade,FENSAP-ICE software was used to carry out numerical simulation research on the ice accretion on the surface of fan blade.The results show that under the condition of high speed,ice accretion of fan blade was mainly generated on the pressure surface,the speed of supercooled water droplets and ice crystals in the flow channel first increased and then decreased from the leading edge to the trailing edge,the collection coefficient increased first from the leading edge to the tail edge,and then decreased,the higher the speed,the centrifugal force and aerodynamic force of the water film increased,and the water film refreezes behind the leading edge,resulting in a thicker ice accretion thickness of the blade than that of the leading edge.In addition,the unmelted ice crystals on the surface are also collected due to the water film formed by supercooled water droplets on the leaves.In the area where the water film does not exist at the trailing edge,the temperature is higher than the freezing point,and the ice crystals are absorbed to the trailing edge to form ice accretion after melting.Through the numerical simulation of high-speed mixed-phase ice accretion of fan blade,this paper provides theoretical support for predicting mixed-phase ice accretion of fan blade during high-altitude flight.

关 键 词：积冰 跨音速 风扇叶片 混合相 激波 

分 类 号：V231.1[航空宇航科学与技术—航空宇航推进理论与工程]