Browse > Article

Evaluation of Head Loss within In-Line Mixer for Water Treatment using CFD Technique  

Hwang, Young-Jin (한국수자원공사)
Lim, Sung-Eun (한국수자원공사)
Kim, Seong-Su (한국수자원공사)
Park, No-Suk (한국수자원공사)
Wang, Chang-Keun (충남대학교 환경공학과)
Publication Information
Journal of Korean Society of Water and Wastewater / v.23, no.1, 2009 , pp. 107-112 More about this Journal
Abstract
This study was conducted for verification and systematization of estimation method about the headloss using CFD(Computational Fluid Dynamics). Head loss which happens between the inlet and outlet of in-line mixer can be a major factor for the design and construction. Also, this Case studies about the sensitivity related to the velocity in the piping system. As result, program's default calculation function was used to get each side's total pressure and the differential of each total pressure could be defined as head loss from in-line mixer. In the case of adopting pipe surface friction factor and geometry loss, Calculation residual can be much more reduced. It was found that residual of value between CFD method and field test ranged about 3 through 18 precent.
Keywords
in-line mixer; CFD simulation; Total Pressure; function;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Vrale, L. and Jorden R. M. (1971) Rapid Mixing in Water Treatment. Journal of AWWA, 63(1), pp. 52~58
2 박영오, 김기돈, 박노석, 임재림, 임경호 (2008) Pump Diffusion Mixer에서 압력수량에 따른 응집제 확산분포 특성, 상하수도학회지, 22(1), pp.65-71
3 박노석, 임성은, 김성수, 황준식, 정남정 (2009) 일 유입유량 변동과 공정내 표면파 전파속도 상관성 분석, 상하수도학회지, 22(2), pp.239-243   ScienceOn
4 Hudson, H. E. and Wolfner, J. P., (1967) Design of Mixing and Sedimentation Basins Journal of AWWA, 59(10), pp. 1257~1268
5 건설교통부 (2005) 상수도시설기준
6 박대진, 박영오, 박노석, 김성수, 왕창근 (2008) CFD모사 기법 을 이용한 관내 혼화장치내 흐름 특성 평가, 상하수도학회지, 22(3), pp.351-358
7 박영오, 박노석, 김성수, 김기돈, 임경호 (2008) CFD모사 기법을 이용한 Pump Diffusion Mixer내의 응집제 확산분포에 대한 평가, 상하수도학회지, 22(1), pp.49-63
8 No-Suk Park and Heekyung Park, 2002, Analysis of local velocity gradients in rapid mixer using particle image velocimetry technique, Water Science and Technology, Water Supply, Vol. 2 No. 5-6, pp. 47-55,
9 Kawamura. S. (1991) Integrated Design of Water Treatment Facilities, JOHN WILEY & SONS, INC. New York
10 Clark M.M., Srivastava J.S., Lang R.R., Trussell L.J., McCollum D., Bailey, J.D. Christie, G. Stolarik (1994) Selection and Design of Mixing Processes for Coagulation, AWWA Research Foundation, Denver, USA
11 Hyun-Chul Kim and Seockheon Lee. (2006) Pump diffusion flash mixing for improving coagulation process in drinking water treatment, Separation & Purification Technology, 52, pp. 117~125   DOI   ScienceOn