超高层建筑群台风流场的LBM分析  

Analysis for Typhoon Flow Field of the Super High-Rise Building

作　　者：彭妙娟[1] 吴嘉岭 杨建飞[2] 钱跃竑[2] 

机构地区：[1]上海大学土木工程系,上海200072 [2]上海大学上海市应用数学和力学研究所,上海200072

出　　处：《力学季刊》2014年第4期567-577,共11页Chinese Quarterly of Mechanics

基　　金：上海大学211工程队伍建设项目

摘　　要：运用二维格子Boltzmann方法对台风经过上海陆家嘴超高层建筑群(包括金茂大厦、环球金融中心和上海中心)的流场进行了数值模拟,文中数据采用2012年的"海葵",对台风登陆上海前,登陆上海,在上海达到最大速度以及台风离开上海各时段进行了分析,利用MATLAB得到了各时段不同高度层的速度流场图,研究结果表明:流场中的风速和风压分布情况与建筑物的密集程度和布局密切相关;超高层建筑物的分布需要适当地分散.The two-dimensional lattice Boltzmann method for simulating and analyzing of the flow field when the typhoon through three super high-rise building of the Jinmao Tower, the Shanghai World Financial Center, and the Shanghai Centre in Shanghai Lujiazui was used. Depended on the typhoon data of the ＂sea anemone＂ in 2012, aimed at different time interval that the typhoon was landing, passing and leaving the Jinmao Tower, the Shanghai World Financial Center and the Shanghai Centre, flow field charts for different heights were obtained by MATLAB. These computational results show that distribution of wind speed and pressure, the density of buildings and the layout of the buildings are closely related, and distribution of buildings need properly disperse for super high-rise building.

关 键 词：格子BOLTZMANN方法 超高层建筑 台风 流场 

分 类 号：O351[理学—流体力学]