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Title |
Post-Correlation Analysis for Shake Table Test of Square Liquid Storage Tank
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Authors |
손일민(Il-Min Son) ; 김재민(Jae-Min Kim) ; 최형석(Hyung-Suk Choi) ; 백은림(Eun-Rim Baek) |
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DOI |
https://doi.org/10.11112/jksmi.2016.21.1.023 |
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Keywords |
CFD ; 상관해석 ; 지진해석 ; 유체저장탱크 ; 슬러싱 ; 진동대실험 Post-correlation analysis ; Seismic analysis ; Fluid storage tank ; Sloshing ; Shake table test |
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Abstract |
In this study, a post-correlation analysis for shaking table test of square water storage tank is presented for the use of advances in earthquake-resistant design of liquid storage tank. For this purpose, the ANSYS CFX program is selected for the CFD analysis. Sensitivity analysis for resonant sloshing motion in terms of grid size and turbulence model suggested that (1) horizontal grid size as well as vertical grid size is a key variable in the sloshing analysis, and (2) the SST turbulence model is best for the sloshing analysis. Finally, correlation analyses for a non-resonant harmonic input and scaled earthquake excitation of the El Centro (1940) NS component are carried out using the grid and turbulence model established through the post-correlation analysis for the resonant motion. As a result, sloshing time histories by the CFD analysis agreed very well with the test results.
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