CAJ | 학술논문

以某复杂体型高层建筑为例,对其风荷载进行了刚性模型风洞试验研究,并基于Fluent6.1软件平台,将雷诺应力湍流模型(RSM)与非平衡壁面函数搭配使用,对其进行了计算流体动力学(CFD)数值模拟.结果表明:风洞试验与数值模拟2种方法相辅相成;该类高层的迎风面主要受正压作用,屋面、背风面以及侧面主要受负压作用,尤其转角处背风区域局部负压较大;在180°风向角下,该类高层体型本身提供的类似峡谷的风速放大效应显著.
이모복잡체형고층건축위례,대기풍하재진행료강성모형풍동시험연구,병기우Fluent6.1연건평태,장뢰낙응력단류모형(RSM)여비평형벽면함수탑배사용,대기진행료계산류체동역학(CFD)수치모의.결과표명:풍동시험여수치모의2충방법상보상성;해류고층적영풍면주요수정압작용,옥면、배풍면이급측면주요수부압작용,우기전각처배풍구역국부부압교대;재180°풍향각하,해류고층체형본신제공적유사협곡적풍속방대효응현저.
Taking a complex-shaped high-rise building as a case, the wind tunnel test with rigid model was carried out for wind load study. Meanwhile, with Fluent 6.1 software, the CFD numerical simulation had been performed with the RSM and the Non-equilibrium Wall Functions. It was found that the results of the two methods were in good agreement. There were mainly positive pressures on the windward surface and negative pressures on the roof, the leeward surface and the side. Especially, negative pressure was higher in the leeward region at the building corner. And at the wind angle of 180~, the wind speed amplification effect was remarkable which was similar to those of canyons.