Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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A Study on the Change of Free Surface Vortex according to Intake Conditions in the Pump Sump

펌프 섬프장 흡입 조건에 따른 자유표면 보텍스 변동에 관한 연구

  • 박영규 (부경대학교 대학원 메카트로닉스공학과) ;
  • 이규명 (부경대학교 대학원 메카트로닉스공학과) ;
  • 최윤환 (부경대학교 기계자동차공학과) ;
  • 이연원 (부경대학교 기계자동차공학과)
  • Received : 2011.12.17
  • Accepted : 2011.12.30
  • Published : 2011.12.31
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Abstract

In this study the change of free surface vortex is represented at different times according to height of water and with or without curtain wall installation. The air volume fraction is investigated at each condition of water level and the influence about creation of vortex is analyzed. The height of sump intake is taken as 100mm and the water level is divided into 5 steps. The sump model is the TSJ model and the curtain wall is applied by HI standard of America. The results shows that the free surface vortex can be identified on the isotropic surface at air volume fraction 1%~5% and the vortices make an air column from the free surface to the sump intake and are created and destroyed repeatedly. In the higher water level, less air is absorbed into the intake pipe. After curtain wall installation, the suction rate of the air volume fraction is decreased by 6.7%. The result of the vortex motion according to time, works on a cycle.

Keywords

References

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Cited by

  1. Numerical visualization of air intake induced by free surface vortex vol.26, pp.6, 2017, https://doi.org/10.1007/s11630-017-0971-2