Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Examining the effects of wall roughness on the hydraulic characteristics of chlorine contactor using Transient CFD Simulation Technique

벽면 조도계수가 염소 접촉조 수리특성에 미치는 영향 연구

  • Published : 2011.10.15
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Abstract

In this study, in order to investigate the effects of wall roughness on the hydraulic characteristics of chlorine contactor, CFD simulation and tracer tests were conducted for both of reactors whose walls are made of concrete and lined with PE(Poly Ethylene). In the case of walls contacted with water being lined with PE (relatively lower roughness), the flow within reactor is closer to plug flow than that in the case of concrete walls (relatively higher roughness). Especially, the longer tail of C-curve from the results of transient CFD simulation can tell that Morill index in the case concrete walls is much higher than that in the case of walls be lined with lower roughness material.

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References

  1. 신은허, 이승재, 김성훈, 박희경, (2008) "정수지 내부 단락류 발생평가 :Part A. 정수장 내부 단락류 분석을 통한 장폭비와 형태가 $T_{10}$/T값에 미치는 영향 연구", 상하수도학회지, Vol.22, No.2, pp.105-112.
  2. 신은허, 이승재, 김성훈, 박희경, (2008) "정수지 내부 단락류 발생평가 :Part B. 내부 단락류 평가 방법의 현장 적용을 통한 내부 도류벽과 정류벽을 이용한 $T_{10}$/T증가 분석", 상하수도학회지, Vol.22, No.1, pp.113-120.
  3. 이승재, 신은허, 김성훈, 박희경, (2007) "정수지내 사류비역이 수리학적 효율에 미치는 영향 연구" 상하수도학회지, Vol.21, No.2, pp.177-185.
  4. 신은허, 김성훈, 박희경, 안재찬, 최재호, 최영준, (2005) "정수지의 형상과 유입유량이 T10에 미치는 영향연구" 상하수도학회지, Vol.19, No.6, pp.819-826.
  5. 환경부, 2004, 상수도 시설물 내수연한 설정 연구
  6. 이수식, 이상배, 안경모, 이재경, 최선호 (2002) 수리학, 동학 출판사
  7. Heald. C. C. (2003) Cameron Hydraulic Data Book, FLOWSERVE
  8. Kawamura, S. (2000) Integrated Design of Water Treatment Facilities, 5th ed., John Wiley&Sons, New York
  9. Shilton A. and Harrison J. (2003) "Development of guidelines for improved hydraulic design of waste stabilization ponds" Water Science and Technology, 48(2), pp.173-180
  10. Clark. M.M., Ducoste J. and Burns C. (1999) Improving Clearwell Design for CT Compliance, AWWARF and AWWA
  11. Hannoun I.A. and Bouls F. (1997) "Optimizing distribution storage water quality :A hydrodynamic approach", Appl. Math. Modelling, 21, pp.495-502. https://doi.org/10.1016/S0307-904X(97)00043-7
  12. Hannoun I.A., Bouls F. and List J. (1998) "Using hydraulic modeling to optimize contact time", Journal of AWWA, 90(8), pp.77-87 https://doi.org/10.1002/j.1551-8833.1998.tb08487.x
  13. Lee Seungjae, Shin Eunher, Kim Sunghoon and Park Heekyung (2006) "Improving Hydraulic Efficiency of Clearwell Using CFD Simulation", 15th Joint KKNN Symposium, Kyoto, Japan.
  14. Teefy, S.M., and Singer, P.C. (1990) "Performance and Analysis of Tracer Tests to Determine Compliance of a Disinfection Scheme with the SWTR", Journal of AWWA, 82(12), pp.88-98. https://doi.org/10.1002/j.1551-8833.1990.tb07073.x
  15. Currie, I. G., (1993) Fundamental mechanics of fluids, McGraw-Hill, New York.