Numerical Simulation of 3D Steady Atmospheric Flow around High-Rise Buildings Based on Standard CAARC Model
Based on different Reynolds Averaged Navier-Stokes Equations (RANS) turbulence models such as standard k-ε model etc.,a commercial computational fluid dynamics software Fluent 6.3 was employed to numerically simulate the 3D steady wind flow field around standard high building CAARC in atmospheric boundary layer. The simulating results are compared with the data obtained from the wind tunnel experiment,which shows that numerical simulation is a feasible way to study the wind flow around high building and the distributing of wind pressure in the buildings surface. Standard k-ε,Realizable k-ε,RNG k-ε and SST k-ω models can give useful information and results from the aspect of engineering application. On the wall of windward,the numerical results are very close to those of the tests; and on the walls of side wind and leeward,the numerical results lie between the results of NPL and TJ-2. There is a minor difference among the results of these RANS turbulence models. The research provides a foundation for numerical simulation study of wind flow around bluff body.
Computational wind engineering High-rise building CAARC model Turbulence model Numerical simulation
Xuhong Zhou Shaofeng Nie Tianhua Zhou Ziwen Jia
School of Civil Engineering and Mechanics,Lanzhou University,Lanzhou,730000 China School of Civil Engineering,Changan University,Xian,710064 China
国际会议
哈尔滨
英文
126-134
2008-10-11（万方平台首次上网日期，不代表论文的发表时间）