摘要
通过研究结冰与物体表面粘结特性,掌握它们之间的分离过程对优化除冰方案具有重要意义。当前研究较多的开展了基于纳米尺度的结冰分离,但其研究内容与真实宏观状态结冰分离过程相差较远,有必要研究宏观尺度的结冰分离过程。本文设计并搭建了用于测试法向和切向结冰粘结力的试验台,在不同温度下展开实验并获得了结冰冰柱与金属表面的法向和切向粘结力。引入宏观的结冰分离机制,引入粘结单元层本构模型,在Abaqus中空对结冰与金属表面分离过程进行数值模拟。通过对比数值模拟和实验验证结果,深入的了解了结冰粘结特性并实现了结冰与金属平面分离过程数值模拟。
It is of great significance to optimize de-icing methods by studying the adhesion characteristics between icing and object surfaces,as well as mastering the separation process between them.Although nano-scale numerical simulations provide some insights into the icing separation process,they fail to fully capture the complexities of realworld icing phenomena.Hence,there is a need to investigate the macro-scale icing separation process.We have constructed a test bench capable of assessing icing adhesion in both the normal and tangential directions.By conducting experiments at different temperatures,we have obtained valuable data on the change in normal and tangential adhesion between icing icicles and metal surfaces.Moreover,we have introduced a macroscopic icing adhesion model and incorporated a constitutive model for the cohesion unit layer.This facilitates the numerical simulation of the separation process between icing and metal surfaces in Abaqus software.By validating simulation results with experimental data,we gain insights into the characteristics of icing adhesion and achieve a better understanding of the icing and metal sheet separation process.
作者
王绍龙
冀艳卓
康育浩
石磊
张亮
WANG Shaolong;JI Yanzhuo;KANG Yuhao;SHI Lei;ZHANG Liang(School of Metallurgy and Energy,North China University of Science and Technology,Tangshan 063210,P.R.China;Key Laboratory of Icing and Anti/De-icing,China Aerodynamics Research and Development Center,Mianyang 621000,P.R.China;College of Mechanical and Electrical Engineering,Hebei Normal University of Science and Technology,Qinhuangdao 066000,P.R.China;Hebei Technology Innovation Center of Photovoltaic Module Manufacturing Equipment,Hebei Normal University of Science and Technology,Qinhuangdao 066000,P.R.China)
基金
supported in part by Key Laboratory of Icing and Anti/De-icing of CARDC(No.IADL20210414)
the Science and Technology Project of Hebei Education Department(No.JQN2021016).
关键词
冰
粘结力
分离过程
金属表面
数值模拟
ice
adhesion
separation process
metal surface
numerical simulation
