Numerical Investigation on Flow Induced Vibration of Distributed Circular Tube Bundle

Zhang Yu; He Chao; Sun Lei

doi:10.13832/j.jnpe.2022.S1.0111

Volume 43 Issue S1

Jul. 2022

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Zhang Yu, He Chao, Sun Lei. Numerical Investigation on Flow Induced Vibration of Distributed Circular Tube Bundle[J]. Nuclear Power Engineering, 2022, 43(S1): 111-115. doi: 10.13832/j.jnpe.2022.S1.0111

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Zhang Yu, He Chao, Sun Lei. Numerical Investigation on Flow Induced Vibration of Distributed Circular Tube Bundle[J]. Nuclear Power Engineering, 2022, 43(S1): 111-115. doi: 10.13832/j.jnpe.2022.S1.0111

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Numerical Investigation on Flow Induced Vibration of Distributed Circular Tube Bundle

doi: 10.13832/j.jnpe.2022.S1.0111

Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2022-01-18
Rev Recd Date: 2022-03-02
Publish Date: 2022-06-15

Abstract

Abstract

A numerical simulation study based on Computational Fluid Dynamics (CFD) / Computational Solid Dynamics (CSD) coupling method was carried out to investigate the vibration behavior of distributed circular tube bundle under cross flow excitation. In the study, the unsteady lift-drag acting on the tube bundle is obtained by solving the unsteady Reynolds-Averaged NS (URANS) equation, the tube bundle vibration equation is solved by fourth-order Runge-Kutta scheme discretization, a mesh updating strategy based on spring smoothing is adopted to ensure the orthogonality of flow field grid in the process of tube bundle vibration, and the reliability of the numerical method is verified by the experimental and calculation results of the flow around a single tube. Through the above methods, the motion trajectory, flow force and vibration time-frequency characteristics of the central tube are analyzed in detail. The results show that under the fluid excitation, the vertical and transverse vibration frequency of the central tube is consistent with the fluid excitation frequency, showing a typical forced vibration behavior.
- Distributed tube bundle,
- Flow induced vibration,
- CFD/CSD coupling method,
- Cross flow,
- Numerical simulation

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References(8)

References

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