Nonlinear Analysis of Sloshing in Rectangular Tanks by Perturbation Approach

섭동법을 사용한 사각형 유체저장 탱크의 비선형 유동해석

  • 전영선 (한국원자력연구소 책임기술원) ;
  • 윤정방 (한국과학기술원 건설ㆍ환경공학과)
  • Published : 2002.12.01


For nonlinear analysis of sloshing of fluid in rectangular tanks, a new method using the perturbation approach is presented. The results by presented method show good agreement with results in previous study. The importance of nonlinear sloshing analysis is demonstrated by comparing nonlinear behaviors of sloshing in broad and tall tanks with different site conditions. In general, the results by nonlinear analysis are greater than those by linear analysis. Specially, the nonlinear behavior is significant in softer soil site and broad tank. Therefore, nonlinear behavior analysis has to be considered in the design of large liquid storage tanks.


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