In order to study the dynamic characteristics and fluid structure interactions of tubular structures under the action of fluid in reactor, such as fuel rod bundles and heat transfer tube bundle of steam generator, the dynamic equations and the acoustic wave equations of structures are discretized by finite element method. The acoustic wave equations are simplified from continuity equation and momentum equation of fluid field. Based on the fluid structure coupling method, the dynamic characteristics of the tube under the internal flow, external flow and combined action of internal and external flow are calculated respectively. The influence of flow field domain, element type and grid number on the dynamic characteristics of the tube is also analyzed. Secondly, based on the computational fluid dynamics and computational structural dynamics, the interaction between the two physical fields of fluid and structure is considered simultaneously. The finite volume method is used to discretize the fluid control equations and the turbulent flow is investigated using the large eddy simulation method (LES). The Newmark algorithm is used to solve the structural dynamic equations. Combined with the dynamic mesh control technique, a numerical model for flow induced vibration of three-dimensional flexible tube is established. Finally, the flow induced vibration of a three dimensional flexible single tube and a square arrangement tube bundle is calculated using the numerical model. By comparing with the existing research results, it is found that the numerical simulation results are in good agreement with the experimental results. Thus, the correctness of the model is verified. It is also shown that the numerical model established in this paper can be used to simulate the dynamic characteristics and flow induced vibration of tubular structures.
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2018 26th International Conference on Nuclear Engineering
July 22–26, 2018
London, England
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5152-4
PROCEEDINGS PAPER
Study on Dynamic Characteristics and Flow Induced Vibration of Tube Bundles Based on the Fluid Structure Coupling Method
Zhipeng Feng,
Zhipeng Feng
Nuclear Power Institute of China, Chengdu, China
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Qian Huang,
Qian Huang
Nuclear Power Institute of China, Chengdu, China
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Shuai Liu,
Shuai Liu
Nuclear Power Institute of China, Chengdu, China
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Fengchun Cai,
Fengchun Cai
Nuclear Power Institute of China, Chengdu, China
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Xi Lv,
Xi Lv
Nuclear Power Institute of China, Chengdu, China
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Xiaozhou Jiang
Xiaozhou Jiang
Nuclear Power Institute of China, Chengdu, China
Search for other works by this author on:
Zhipeng Feng
Nuclear Power Institute of China, Chengdu, China
Qian Huang
Nuclear Power Institute of China, Chengdu, China
Shuai Liu
Nuclear Power Institute of China, Chengdu, China
Fengchun Cai
Nuclear Power Institute of China, Chengdu, China
Xi Lv
Nuclear Power Institute of China, Chengdu, China
Xiaozhou Jiang
Nuclear Power Institute of China, Chengdu, China
Paper No:
ICONE26-81342, V008T09A009; 8 pages
Published Online:
October 24, 2018
Citation
Feng, Z, Huang, Q, Liu, S, Cai, F, Lv, X, & Jiang, X. "Study on Dynamic Characteristics and Flow Induced Vibration of Tube Bundles Based on the Fluid Structure Coupling Method." Proceedings of the 2018 26th International Conference on Nuclear Engineering. Volume 8: Computational Fluid Dynamics (CFD); Nuclear Education and Public Acceptance. London, England. July 22–26, 2018. V008T09A009. ASME. https://doi.org/10.1115/ICONE26-81342
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