张永超;丁丽林;赵帅;王坚石;陈庆光;

• 1:山东科技大学机械电子工程学院

摘要(Abstract)：

针对石油裂解气管路中热电偶套管容易因旋涡脱落及受绕流阻力的影响而发生疲劳损伤的问题，使用LES对热电偶套管绕流进行数值模拟，研究套管不同插入深度对尾流场的影响以及套管安装角和干扰装置对涡脱及套管减阻性能的影响。结果表明：随着套管插入深度的增加，套管受流体冲击逐渐增强且尾流中逐渐有旋涡交替脱落；随着安装角的减小，套管阻力系数和升力系数逐渐降低，但套管所受流体冲击面积逐渐增大，综合考虑选择60°安装角，减阻效果达11.4%;增加干扰装置能大幅降低阻力系数，较基础单管所受阻力系数降低35.1%,旋涡脱落频率显著降低。

关键词(KeyWords)： 热电偶套管;干扰装置;阻力系数;升力系数

Abstract:

Keywords:

基金项目(Foundation): 山东省自然科学基金项目(ZR2018MEE036);; 山东科技大学群星计划项目(QX2020M97)

作者(Authors): 张永超;丁丽林;赵帅;王坚石;陈庆光;

DOI: 10.16452/j.cnki.sdkjzk.2022.02.012

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