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Large eddy simulation of turbulent buffet forces
in flow induced vibration
- XI Zhide, CHENG Bingde, LI Pengzhou
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Mechanical Laboratory for Reactor Structure of Nuclear Power Institute of China
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History
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| Published |
| 05 Dec 2008 |
| Issue Date |
| 05 Dec 2008 |
The pressure pulse filter and Smagorinsky sub-grid stress model of the Large Eddy Simulation (LES) are introduced. The fluid field in the annular plenum between the pressure vessel and the core barrel of the1:5 model in the second phase of Qinshan Nuclear Power Plant is simulated, and the distribution of the total pressure in the space and time domains is obtained. The results show that the Power Spectrum Density (PSD) of LES from the calculation and the test are in the same quantity order. Thus, the pressure of LES can be a load to stimulate the barrel vibration.
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References
1. Chen S-S . Flow Induced Vibration of Circular Cylindrical Structures. Beijing: Petroleum Industry Press, 1993 (in Chinese)
2. Zhang Zhaoshun, Cui Guixiang, Xu Chunxiao . Theory and Modeling of Turbulence. Beijing: Tinghua University Press, 2005
3. Ma Jianzhong . Calculation of response of vibration caused by turbulence.The 14th National Conferenceon Structural Mechanics in Reactor Technology. Guiling, China, 2006
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