Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
권호 표지

Numerical Simulation of the Wind Flow Over a Triangular Prism with a Porous Windbreak

다공성 방풍벽이 설치된 삼각프리즘 주위 유동장의 수치모사

  • 김현구 (첨단유체공학연구센터, 포항공과대학교) ;
  • 임희창 (환경공학부 대학원, 포항공과대학교) ;
  • 이정묵 (첨단유체공학연구센터, 포항공과대학교)
  • Published : 1999.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

The wind-flow characteristics over a two-dimensional triangular prism with a porous windbreak are numerically investigated. The geometry is a simplified model of large outdoor stack with a frontal wall-type windbreak which is used to prevent particle dispersion by reducing wind speed over stak surface. In the present numerical model, the RNG k-$\varepsilon$ model, the orthogonal grid system and the QUICK scheme are employed for the successful simulation of separated flow. The predicted results are compared and validated with the associated wind-tunnel experiments. In addition, the trajectories of dispersed particles and their sedimentation characteristics are quantitatively investingated using a Lagrangian turbulent-dispersion model.

Keywords

References

  1. 대기보전학회지 v.13 언덕지형을 지나는 유동의 수치해석적 연구 김현구;이정묵;경남호
  2. 대한기계학회논문집 v.20B 다공성 방풍펜스가 대기경계층 내에 놓인 삼각프리즘 표면압력에 미치는 영향에 관한 연구 박철우;성승학;이상준
  3. 대한기계학회논문집 v.21B 다공성 방풍펜스 후방에 놓인 삼각프리즘의 표면압력특성에 관한 풍공학적 연구 박철우;이상준
  4. 민지비산 메카니즘에 관한 연구,95ER303 이상준
  5. Atmos Environ. v.15 An experimental investigation of flow and duffusion on the disturbed boundary layer over a right-I. Mean flow and turbulence structure Aiya, S.;M Shipman
  6. J. Wind Eng. Ind. Aerodyn v.15 Development of velocity and sbcar stress distributions in the wake of a porous shelter belt Bradley, F.E.;P.J. Muthearn
  7. Flow and diffusion near obstacles, Atmospheric Science and Power Production Hosker, R.P.;Randerson, D.(ed.)
  8. J. Wind End. Ind. Aerodym v.66 An experimental and numerical study on the flow over two-dimensional hillls Kim,H.G.;C.M.Lee;H.C.Lim;N.H.Kyong
  9. Boundary-Layer Meteorol,accepted Test of turbulence models for wind flow over terrin wirth separation and lecirculation Kim,H.G.;V.C.Patel
  10. Aerosol Sci Tech. v.17 Particle mouon in two-dimensional confined turbulent flow Lu,Q.Q;J R.Fontance;G. Aubertin
  11. Int'I J.Numer. Methods in Fluids v.12 Numerical preduction of turbulent flow over a two-dimensional ridge Mouzakis,F.N.;G.C.Bergeles
  12. J. Mech. Eng. Sci. v.11 Flow deflection by gauze screens Reynolda, A.J.
  13. J. Wind Eng. Ind. Aerodyn. v.35 a two-equation turbulence model for canopy flows Svensson, U.;K. Haggkvist
  14. Boundary-Layer Mcteorol. v.75 A numerical simulation of boundary-layer flows near shelterbelts Wang, H.;E.S. Takle
  15. J. Wind Eng. Ind. Aerodyn. v.21 Numerical studies of flow through a windbreak. Wilson,J.D.
  16. Boundary-Layer Meteorol v.85 Commeuts on A numerical simmulation of boundary-layer flows near shelterbelts Wilson.J.D.;C.J.Mooney;H.Wang;E.Takle
  17. J. Scientific Computations v.1 Renormalization group analysis of turbulence, I. Basic theory Yakhot,V.;S.A.Orszag