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A Modeling of Intermittent-Hydraulic-Gun-Aerator

간헐식 폭기형 수체순환장치 모델링

  • Song, Mu-Seok (Department of Naval Architecture & Ocean Engineering, Hongik University) ;
  • Seo, Dong-Il (Department of Environmental Engineering, Chungnam National University)
  • 송무석 (홍익대학교 조선해양공학과) ;
  • 서동일 (충남대학교 환경공학과)
  • Published : 2005.06.01

Abstract

A modeling of a hydraulic-gun-aerator is proposed to set up a design procedure for such devices. The aerators are used to destroy any thermal stratification that are responsible for the degradation of water qualify of lakes. The aerator produces ascending flow by using air bubbies released instantly near the bottom of the lake into a cylindrical pipe installed vertically. Differently form the diffuser-aerators, they can pull up the cold, oxygen depleted water directly to the region of the free surface, and they are believed to work effectively especially for relatively deeper lakes. Their design procedure has not been established yet though, and we propose a model focusing on the exit flow velocity at the top of the aerator through the examination of presently operating devices.

Keywords

References

  1. 박주석, 1987, 적조발생현황의 변천과 대책, 수산진흥연구원
  2. 송무석, 강현선, 서동일, 이상욱, 황현동, 2002(a), '공기공급을 이용한 호수의 성층파괴에 관한 기초 연구(I),' 한국해앙환경공학회 춘계학술대회 논문집, pp. 157-160
  3. 송무석, 강현선, 서동일, 황현동, 2002(b), '공기 공급을 이용한 온도성층 파괴효과에 관한 기초 연구,' 대한조선학회 추계학술대회 논문집, pp. 182-186
  4. 송무석, 서동일, 2001, '공기공급을 이용한 호수의 수질개선,' 한국해앙환경공학회 추계학술대회 논문집, pp. 95-96
  5. Clift, R., Grace, J.R. and Weber, M.E., 1978, Bubbles, Drops, and Particles, Academic Press
  6. Crowe, C.T., Roberson, J.A. and Elger, D.F., 2003, Engineering Fluid Mechanics, 7th Edition, John Wiley & Sons
  7. Lorenzen, M. and Fast, A., 1977, A Guide to Aeration/Circulation Techniques for Lake Management, Environ. Research Lab
  8. Turner, I.S., 1973, Buoyancy effects in fluids, Cambridge