Abstract：Abstract: Based on Fluent 6, the mean and fluctuating wind pressure coefficients of a high-rise building scaled model with aspect ratio of 1:1:6 were numerically simulated by adopting large eddy simulation (LES). The simulated results were first compared with those of wind tunnel tests. Then the effect of incoming flow turbulent intensity on the wind pressure distribution on the structure is investigated. The results show that: (1) For similar structures, the wind pressure on the windward face is directly affected by oncoming flow turbulence, while the lateral faces are nearly unaffected, but mainly affected by signature turbulence caused by the flow separation. For the reason that the leeward face is located in the wake of the flow, the influencing factors on wind pressure on the leeward face are relatively complex. (2) The statistic characteristics and the spectra of the wind pressure coefficients for LES results are elementarily in accordance with those of wind tunnel tests. LES technique could precisely predict the mean and fluctuating wind pressure distributions on structures.
郑德乾;顾明;张爱社;张建国. 单体1:1:6方形截面建筑绕流的大涡模拟[J]. , 2011, 30(5): 96-100.
ZHENG Deqian;GU Ming;ZHANG Aishe;ZHANG Jianguo. Large Eddy Simulation of Flow around a Single Square Building Model with 1:1:6 Shape. , 2011, 30(5): 96-100.
2011, Vol. 30 
