Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Development of a New E-$\varepsilon$ Turbulence Model for Analysing the Air Flow Field within an Urban Street Canyon

도시협곡내 유동장 해석을 위한 새로운 E-$\varepsilon$ 난류 모델의 개발

  • Published : 1999.06.01
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Abstract

A new E-$\varepsilon$ turbulence numerical model is proposed for analysing the turbulent air flow field within are urban street canyon. In this model the equations of eddy viscosity and energy dissipation ae reformed by considering the Kolmogorov time scale and streamline curvature effect. Application results of the new E-$\varepsilon$ model have been compared with those of standard E-$\varepsilon$ model and Yang and Shih's one, which are commonly used ones in engineering fields, and with field experiment results of DePaul and Sheih. The new model appears to be generally superior to other both models in the prediction of an air flow field within street canyon.

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References

  1. 대한환경공학회지 v.19 no.11 도시협곡 내에서 흐름장에 관한 연구 정상진
  2. 대한환경공학회지 v.20 no.7 도시협곡 내에서 대기오염물질의 수송과 확산(Ⅰ) : Vortex cell의 형성과 최대농도의 발생 정상진;박옥현
  3. Atm.Env. v.20 no.3 Measurements of wind velocities in a stract canton DePaul, F.T.;Sheth, CM
  4. Atm.Env. v.29 no.13 Profiles of turbulence statistics in and above an urban street canyon Roach, M.W.
  5. Atm.Env. v.22 Kinematics and dispersion characteristics of flows in asymmetric street cayon Hoydysh, W G;Dabberdt, W.F.
  6. Atm.Env. v.26B An investigation of three-dimensional characteristics of flow regimes within the urban canyon Hunt, L.J.;Johnson, G T;Waston, I.D.
  7. Energy Bldng v.11 Street design and urban canopy layer climate Oke,T.R.
  8. J. of Wind Eng.and lnd Aerodyns v.57 Characteristics of wind field in a street canyon Ca, V.T.;Asaeda, T.;Ito, M.;Armfield, S.
  9. Atm.Env. v.30 no.15 Pollutant disperson and thermal effects in urban street canyon Sini, J.F.;Anquetin, S.;Mestayer, P.G.
  10. Computer and Physics v.23 no.8 Assessment of turbulent transport models including non-linear RNG eddy viscosity formulation and second-moment closure for flow over a backward-facing step Lin,F.S.;Leschziner,M.A.
  11. Phys. Fluids A v.4 no.7 Development of turbulence models for shear flows by double expansion technique Yakhot, V.;Orszag, S.A.;Thangam, S.;Gatski, T.B.;Speziale, C.G.
  12. J.of Wind Eng. and Ind.Aerodyns. v.51 Numerical predictions of turbulent recirculating flows with a K-ε model Zhand,C.X.
  13. Journal of Fluid Mecharucs v.74 no.4 Contribution Towards a Reynolds-Stress Closure for Low-Reynolds-Number Turbulence Hanjalic, K;Launder, B.E.
  14. AIAA Journal v.31 no.7 New time scale based E-ε model for near-wall turbulence Yang.Z.;Shin.T.H.
  15. Transactions of the ASME v.103 Calculation of Annular and twin parallel jets using various discretization schemes and turbulence-model variations Leschziner.M.A.;Rodu, W.
  16. Journal of Wind Engineering and Industrial Aerodynamics v.46;47 Numerical prediction of separating and reattaching flows with a modified low-Reynols-number k-ε model Abe,K.;Nagano,Y.;Kondoh,T.
  17. AGARDograph v.169 Effects of streamwise curvature on turbulent flows Bradshaw,P.
  18. Numerical Heat Transfer and Fluid Flow v.197 Paltankar, S.V.
  19. Dep. of Mechanical Eng. S.W. 7,130 Teach-2E:A General Computer Program for Two-dimensional, Tubulent, Recirculation, Flows Gosman,A.D.;Iderish,F.J.K.