Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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NUMERICAL STUDY OF THE SLOSHING PHENOMENON IN THE 2-DIMENSIONAL RECTANGULAR TANK WITH VARIABLE FREQUENCY AT A LOW FILLING LEVEL

가진 주파수에 따른 이차원 사각탱크 내부의 슬로싱에 관한 수치적 연구

  • Jung, J.H. (Dept. of Naval Architecture and Ocean Engineering, Pusan Univ.) ;
  • Lee, C.Y. (Dept. Hyundai Maritime Research Institute, Hyundai Heavy Industries) ;
  • Yoon, H.S. (Global Core Research Center for Ships and Offshore Plants, Pusan Univ.) ;
  • Kim, H.J. (Global Core Research Center for Ships and Offshore Plants, Pusan Univ.)
  • 정재환 (부산대학교 조선해양공학과) ;
  • 이창열 (현대중공업 선박성능연구 2실) ;
  • 윤현식 (부산대학교 조선해양플랜트 글로벌 핵심 연구센터) ;
  • 김효주 (부산대학교 조선해양플랜트 글로벌 핵심 연구센터)
  • Received : 2014.11.24
  • Accepted : 2015.03.16
  • Published : 2015.03.31
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Abstract

The present study investigates the sloshing phenomena in a two-dimensional rectangular tank at a low filling level by using a level set method based on finite volume method. The code validations are performed by comparing between the present results and previous numerical and experimental results, which gives a good agreement. Various excitation frequencies and excitation amplitude of the 30% filling height tank have been considered in order to observe the dependence of the sloshing behavior on the excitation frequency and amplitude. Regardless of excitation amplitude, the maximum value of wall pressure occurs when the excitation frequency reaches the natural frequency. The time sequence of free surface and corresponding streamlines for excitation frequencies have been presented to analysis the variation of wall pressure according to time, which contributes to explain the double peaks in the time variation of wall pressure.

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References

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