摘要
在管道使用过程中,由于管道介质中夹带微小固体颗粒易产生冲蚀磨损造成管道穿孔而发生泄漏等问题,为此,运用Fluent软件中的DPM冲蚀预测模型,对不同气流方向下的T型三通管的冲蚀、应力和形变量进行数值模拟,从而得出受冲蚀磨损比较严重的区域以及产生最大应力和形变的区域。结果表明:经过分析,三通管在使用过程中易出现冲蚀磨损、应力集中区域和形变部位,因此对三通管材料的力学性能存在着较高要求。分流a工况下的冲蚀速率为5.59×10^(-9)kg/(m^(2)·s),受到的冲蚀磨损最大;汇流b工况下的冲蚀速率为3.03×10^(-9)kg/(m^(2)·s),受到的冲蚀磨损最小;冲蚀速率较大的工况下的最大应力和形变量也较大。
During the process of using the pipe,the leakage of the pipe perforation was caused by the erosion and wear of the micro solid particles in the pipe medium.Thus,DPM erosion prediction model in Fluent software was used to conduct numerical simulation of erosion,stress and shape variables in different flow directions,and the areas where erosion wear was relatively serious,maximum stress and deformation occurred were obtained.Results showed that through the analysis,the erosion wear,stress concentration area and deformation parts were easy to occur during the process of using the tee pipe,so there were high requirements for the mechanical properties of the T-junction material.Under the shunt A condition,the erosion rate is 5.59×10^(-9)kg/(m^(2)·s),and the maximum erosion wear was suffered.Under confluence B condition,the erosion rate was 3.03×10^(-9)kg/(m^(2)·s),and the minimum erosion wear was suffered.Besides,the maximum stress and shape variables were also larger under the condition of larger erosion wear rate.
作者
闫宏伟
王璐
彭方现
李鹏程
杨雄
侯相荣
YAN Hong-wei;WANG Lu;PENG Fang-xian;LI Peng-cheng;YANG Xiong;HOU Xiang-rong(School of Mechanical Engineering,North University of China,Taiyuan 030051,China)
出处
《材料保护》
CAS
CSCD
2021年第6期40-45,135,共7页
Materials Protection
基金
山西省回国留学人员科研资助项目(2020-110)
山西省重点研发计划社会发展项目(201603D321117)。
关键词
T型三通管
不同流向
冲蚀磨损
数值模拟
T-junction
different directions
erosion wear
numerical simulation
