Volume 21 Issue 5
Oct.  2006
Turn off MathJax
Article Contents
Article Navigation >  Journal of Aerospace Power  > 2006  >  21(5): 891-896
LI Peng-nian, ZOU Zheng-ping, CHEN Xue-rui, GU Zhi-fu. Numerical study of conical vortices space evolvement on a flat roof[J]. Journal of Aerospace Power, 2006, 21(5): 891-896.
Citation: LI Peng-nian, ZOU Zheng-ping, CHEN Xue-rui, GU Zhi-fu. Numerical study of conical vortices space evolvement on a flat roof[J]. Journal of Aerospace Power, 2006, 21(5): 891-896.
shu

Numerical study of conical vortices space evolvement on a flat roof

  • 1.

    National Key Laboratory on Aero-Engines, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 2.

    Aeroengine Numerical Simulation Research Center, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 3.

    Department of Mechanics and Engineering Science, Peking University, Beijing 100871, China

  • Received Date: 2005-08-04
  • Rev Recd Date: 2005-11-02
  • Publish Date: 2006-10-28
    Abstract
  • Using the computational fluid dynamics software FLUENT,wind load and conical vortices of a building were simulated with the v2-f turbulence model and k-ε turbulence model.The wind angle of attack is 40° relative to the eave of the building.It shows that the v2-f turbulence model can give fairly good results compared to the experimental pressure data.With the increase of x,the sizes of the conical vortices on the flat roof increase firstly and then fall off when they arrive at the ackside of the building.Simultaneously conical vortices and the vortex shed from the lateral wall of the building have great interaction.Also it gets the immanence relation of the space evolvement,intensity and positions of the conical vortices on the flat roof.

     

    • FullText(HTML)
  • loading
    • References(7)
  • [1]
    Kawai H,Nishimura G.Characteristics of fluctuating suction and conical vortices on a flat roof in oblique flow[J].Journal of Wind Engineering and industrial aerodynamics,1996,60:211-225.
    [2]
    Marwood R,Wood C J.Conical vortex movement and its effect on roof pressures[J].Journal of Wind Engineering and Industrial Aerodynamics,1997,69--71:589-595.
    [3]
    Kawai H.Structure of conical vortices related with suction fluctuation on a flat roof in oblique smooth and turbulence Flow[J].Journal of Wind Engineering and Industrial Aerodynamics,1997,69-71:579-588.
    [4]
    Wu F,Sarkar P P,Mehta K C.Understanding the conicalvertex flow on roof[A].Wind Engineering into the 21st Century[C].Larsen,Larose & Livesey (Eds),Balkema,1999:1867-1873.
    [5]
    Durbin P.Near-wall turbulence closure without damping functions[J].Theoretical and Computational Fluid Dynamics,1991,3(1):1-13.
    [6]
    Behnia M,Parneix S,Durbin P.Accurate predictions of jet impingement heat transfer[J].In:HTD-Vol.343,National Heat Transfer Conference,Baltimore,1997,5:111-118.
    [7]
    Behnia M,Parneix S,Durbin P.prediction of heat transfer in a jet impinging on a flat plate[J].International Journal of Heat and Mass Transfer,1998,41:1845-1855.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF(1142.0KB)
    XML

    Article Metrics

    Article views (1352) PDF downloads(445) Cited by()
    Proportional views
    Related

    Copyright © 《Journal of Aerospace Power》 All Rights Reserved.

    Supported by: Beijing Renhe Information Technology Co., Ltd.  

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return