Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Analysis of Water Storage Tank Flowfield using Computational Fluid Dynamics (CFD) Simulation

전산유체역학(CFD)을 이용한 저수조 내부 유동장 해석

  • Choi, Yeon-Woo (Department of Environmental Engineering, Chung Nam National University) ;
  • Han, Min-Su (Department of Environmental Engineering, Chung Nam National University) ;
  • Song, Jun-Hyuck (Department of Environmental Engineering, Chung Nam National University) ;
  • Wang, Chang-Keun (Department of Environmental Engineering, Chung Nam National University)
  • 최연우 (충남대학교 환경공학과) ;
  • 한민수 (충남대학교 환경공학과) ;
  • 송준혁 (충남대학교 환경공학과) ;
  • 왕창근 (충남대학교 환경공학과)
  • Received : 2017.12.21
  • Accepted : 2018.03.13
  • Published : 2018.03.30
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Abstract

Reservoirs, facilities to store water, are being used in several fields for their ability to hold back a large quantity of water for a long time before the water is actually used. However, at the same time, the reservoirs are considered to have a flaw: the longer they store water, the more the quality of water in these reservoirs deteriorates. Further, when the reservoirs are large, they are more likely to have dead-water regions in out-of-the way spots far from either an in-current or an ex-current canal. This study conducted a Computational Fluid Dynamic (CFD) simulation and tried to figure out the internal flow inside each of the reservoirs with different in-current canals built by the multiple hoe screw nozzle method and the drop in-current method. The drop in-current method is more frequently used. According to the analysis of the internal flow inside each reservoir with the different methods applied, we found that the reservoir with the drop in-current canal would have two rotary currents in the lower region of the reservoir and that the velocity of flow would decrease. For a reservoir with the screw nozzle method, a single rotary current occurred, and inside the reservoir, regardless of height, the current turned out to flow in a regular manner.

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References

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