低温痕量水条件下翼型表面结冰特性的数值模拟研究  

Numerical Simulation of Trace Water Icing Characteristics on Airfoil Under Cryogenic Conditions

作　　者：高盈珂 赖天伟[1] 刘学 赵波[2] 侯予[1] GAO Yingke;LAI Tianwei;LIU Xue;ZHAO Bo;HOU Yu(School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710049,P.R.China;Facility Design and Instrumentation Institute,China Aerodynamics Research and Development Center,Mianyang,621000,P.R.China)

机构地区：[1]西安交通大学能源与动力工程学院,西安710049 [2]中国空气动力研究与发展中心设备设计与测试技术研究所,绵阳621000

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2023年第2期216-229,共14页南京航空航天大学学报（英文版）

基　　金：supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China (No.J2019- Ⅲ -00100054);the National Natural Science Foundation of China (No.51976150);the Fundamental Research Funds for the Central Universities;the Youth Innovation Team of Shaanxi Universities

摘　　要：相比于传统的风洞设备,低温风洞可以生成更高雷诺数的气流,而风洞降温过程中残留的痕量水蒸气可能会影响试验件气动参数的测量。痕量水结冰的热力学过程复杂,实验测试较为困难,其机理仍需深入研究。针对该问题,本文基于欧拉方法建立了空气⁃过冷水滴⁃冰晶多相流模型,仿真结果与文献中的实验数据吻合度较高,进一步采用该模型获得了低温风洞中水蒸气凝结液滴/冰晶撞击翼型的结冰过程,探究了气流中总的水含量、融化比、气流温度、压力、马赫数等参数对结冰过程的影响,并定量分析了结冰现象对翼型气动参数的影响,可为低温风洞的实际运行提供一定的理论参考。Compared with conventional wind tunnels,cryogenic wind tunnels can supply testing airflow with higher Reynolds numbers.However,the residual trace water vapor in the cryogenic wind tunnel may affect the accuracy of aerodynamic data at low temperatures.Due to the difficulty of experimental methods,the characteristics of trace water icing still need to be revealed.Based on the Eulerian method,a multiphase flow model of wet air,subcooled droplets and ice crystals is established in this paper.The icing process caused by subcooled droplets and ice crystals condensed from water vapor on the airfoil under the condition of cryogenic wind tunnels is simulated.The results show good consistency with experimental data.The effects of the total water content,melt ratio,airflow temperature,pressure,Mach number and other parameters on icing process are analyzed,and the effects of the airfoil icing on aerodynamic characteristics are also quantified,which may provide a theoretical reference for the actual operation of cryogenic wind tunnels.

关 键 词：低温风洞 痕量水 翼型结冰 数值模拟 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]