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Experimental Study on Sloshing in Rectangular Tank with Vertical Porous Baffle

투과성 내부재가 설치된 사각형 탱크내의 슬로싱 현상에 대한 실험적 연구

Hyeon, Jong-Wu;Cho, IL-Hyoung
현종우;조일형

  • Received : 2015.07.09
  • Accepted : 2015.08.19
  • Published : 2015.08.31

Abstract

A variety of inner baffles are often installed to reduce liquid sloshing and prevent tank damage. In particular, a porous baffle has a distinct advantage in reducing sloshing by changing the natural periods and dissipating the wave energy in a tank. In model tests, porous baffles with five different porosities were installed vertically in a liquid tank under sway motion. The free surface elevations and pressures were measured using an image processing technique and a pressure gage for various combinations of baffle's porosity and submergence depth, and tank's amplitude and period. The experimental results were in good agreement with the analytic solutions (Cho, 2015), with the exception of a quantitative difference at resonant periods. The experimental results showed that the sloshing characteristics in a tank were closely dependent on both the porosity and submergence depth of the baffle, and the optimal porosity existed near P = 0.1275.

Keywords

Sloshing;Image processing technique;Porous baffle;Model test

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Cited by

  1. Sloshing Damping in a Swaying Rectangular Tank Using a Porous Bulkhead vol.32, pp.4, 2018, https://doi.org/10.26748/KSOE.2018.6.32.4.228