基于双向流固耦合的输流圆管应力应变响应分析

刘松,吴先梅,彭修乾,陈家熠,王聪

振动与冲击 ›› 2021, Vol. 40 ›› Issue (20) : 73-79.

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (20) : 73-79.
论文

基于双向流固耦合的输流圆管应力应变响应分析

  • 刘松1,2,吴先梅1,2,彭修乾3,陈家熠1,2,王聪1,2
作者信息 +

Analysis of stress-strain responses of a liquid-filled pipe based on two-way fluid-structure interaction

  • LIU Song1,2,WU Xianmei1,2,PENG Xiuqian3,CHEN Jiayi1,2,WANG Cong1,2
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文章历史 +

摘要

采用大涡数值模拟(large eddy simulatio,LES)方法进行了输流圆管双向流固耦合仿真模拟,对输流圆管的流体脉动与应力应变响应进行了分析研究。发现管道内壁附近的湍流信号与管道内、外壁的周向应力应变信号存在很强的正相关关系,而与管道内、外壁的径向应力应变信号存在很强的负相关关系。因此,可以通过检测输流圆管外壁处的周向应力应变信号间接测出管内壁附近的湍流脉动信号,这为有效地测量管内流体脉动信号提供了很好的方法。

Abstract

In this paper, the large eddy simulation (LES) was used to simulate two-way fluid-structure interaction of a liquid-filled pipe, and the flow pulsation and the stress-strain responses of pipe were analyzed.The study shows that the signal of turbulent flow in vicinity of the inner wall has a strong positive correlation with the circumferential stress-strain signal of the inner and outer walls of the pipe, while there is obvious negative correlation with the radial stress-strain signal of the inner and outer walls of the pipe.The signal of turbulent flow in vicinity of the inner wall can be indirectly measured by detecting the circumferential stress-strain signal of the outer walls of the pipe, which suggests a good method for effectively measuring the pulsation signal of the turbulent in the tube.

关键词

大涡模拟 / 双向流固耦合 / 应力应变响应

Key words

large eddy simulation / two-way fluid-structure interaction / stress-strain responses

引用本文

导出引用
刘松,吴先梅,彭修乾,陈家熠,王聪. 基于双向流固耦合的输流圆管应力应变响应分析[J]. 振动与冲击, 2021, 40(20): 73-79
LIU Song,WU Xianmei,PENG Xiuqian,CHEN Jiayi,WANG Cong. Analysis of stress-strain responses of a liquid-filled pipe based on two-way fluid-structure interaction[J]. Journal of Vibration and Shock, 2021, 40(20): 73-79

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