Experimental investigation on two-phase flow induced vibration responses in a horizontal tee-pipe

SU Heng; QU Yegao; ZHOU Shaochong; ZHOU Ying; PENG Zhike

doi:10.7638/kqdlxxb-2021.0033

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Experimental investigation on two-phase flow induced vibration responses in a horizontal tee-pipe

更新时间：2026-05-28

- Experimental investigation on two-phase flow induced vibration responses in a horizontal tee-pipe
- Vol. 39, Issue 3, Pages: 130-137(2021)
- 作者机构：
  
  1. 上海交通大学机械与动力工程学院,上海,200240
  2. 上海核工程研究设计院有限公司,上海,200233
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2021.0033
  CLC： O353.5
- Published：2021
- 稿件说明：
移动端阅览
宿恒, 瞿叶高, 周劭翀, 等. 水平T型管两相流流致振动实验研究[J]. 空气动力学学报, 2021, 39(3): 130−137.

SU Heng, QU Yegao, ZHOU Shaochong, et al. Experimental investigation on two-phase flow induced vibration responses in a horizontal tee-pipe[J]. 2021, 39(3): 130-137.
宿恒, 瞿叶高, 周劭翀, 等. 水平T型管两相流流致振动实验研究[J]. 空气动力学学报, 2021, 39(3): 130−137. DOI： 10.7638/kqdlxxb-2021.0033

SU Heng, QU Yegao, ZHOU Shaochong, et al. Experimental investigation on two-phase flow induced vibration responses in a horizontal tee-pipe[J]. 2021, 39(3): 130-137. DOI： 10.7638/kqdlxxb-2021.0033.

摘要

以水平T型管为研究对象，开展了两相流输运管道流致振动实验，研究了T型管在气液两相流作用下的振动响应，重点考察了不同气液表观流速下段塞流对流体脉动压力和管道振动响应的影响规律。研究结果表明：T型管相分离现象主要与流体所受惯性力有关，径向及轴向分支管路相分配随气相表观流速增加趋向均匀；段塞流引起的脉动压力频段范围集中在0～15 Hz以内，压力幅值随气相表观流速的增加而增大；段塞流引起的结构振动以垂向振动为主，且振动幅值随气相表观流速增大而增大；T型管的振动与管内气塞和液塞的交替运动有关，两相流作为宽频激励主要激起管道的运行模态并以一阶振动模态为主；主管路两相流平均动量高于分支管路，主管路振动响应幅值最高，峰值频率最小；轴向分支管路由于相分离现象导致液相占比增大，流速减小，易出现因液柱堵塞引起的流体冲击现象，轴向分支管路振动响应幅值高于径向分支管路。

Abstract

Experiments are carried out to investigate the flow-induced vibration responses in a horizontal tee pipe under the excitation of gas-liquid two-phase flow. The influence of the superficial gas velocity on the pressure fluctuations and the vibration responses of the tee-pipe is investigated. The results show that the phase separation phenomenon of tee-pipe is mainly related to the fluid inertia of two-phase flow

and the phase distribution of radial and axial branches tends to be uniform with the increase of the superficial gas velocity. The frequency range of the pressure fluctuation caused by slug flow is concentrated between 0 to 15 Hz

and the pressure amplitude increases with the increase of the superficial gas velocity. The slug flow mainly causes the vertical vibration and the vibration amplitude increases with the increase of the superficial gas velocity. The vibration responses of the tee-pipe are related to the alternate movement of the gas slug and the liquid slug. The two-phase flow mainly excites the operating modes of the pipe

and the first-order vibration mode is the main mode. The vibration amplitude of the main pipe is the largest

and that of the horizontal radial direction line is the smallest

due to the fact that the average momentum of the two-phase flow in the main pipe is higher than that in the branch pipe. The flow separation leads to the proportion of liquid phase in the axial branch pipe increases

and the flow rate of the two-phase flow decreases

which induce fluid impact phenomenon. The amplitude of vibration response of the axial branch pipe is significantly higher than that of the radial branch pipe.

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references

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