数值模拟大气边界层风洞中湍流模型的比较  

Comparative Study of the Turbulence Model in Numerical Simulation of Atmospheric Boundary Layer Wind Tunnel

作　　者：梁村民[1] 陈治全[1] 

机构地区：[1]中国建筑西南设计研究院有限公司,四川成都610042

出　　处：《四川建材》2012年第2期273-274,共2页Sichuan Building Materials

摘　　要：风洞模拟试验是风工程研究的一种重要手段,在对大气边界层风洞进行数值模拟的时候,湍流模型的选取是影响模拟计算结果的至关重要的因素之一,本文针对大气边界层的风洞模型为考察对象对湍流模型进行了考察,考虑了各种湍流模型对计算结果的影响,并与实验结果进行了对比,旨在得出大气边界层风洞模拟中比较适合的湍流模型。研究发现在模拟大气边界层的风洞时,一般宜采用RNG k-ε模型,在计算资源和时间允许的情况下,建议使用雷诺应力模型。The wind tunnel simulations is an important means of wind engineering research.The numerical simulation of the atmospheric boundary layer wind tunnel,the selectionof turbulence model is one of the crucial factors that affect the simulation results.Subject for examination for the atmospheric boundary layer wind tunnel model of turbulence model was investigated,taking into account a variety of turbulence models on the results,and compared with experimental results designed to draw the atmospheric boundary layer wind tunnel simulation more suitable turbulence model.The study found that in the simulated atmospheric boundary layer wind tunnel,are generally advised to use the RNG k-ε model,computing resources and time permitting,we recommend using the Reynolds stress model.

关 键 词：空气动力学粗糙度 大气边界层厚度 湍流强度 

分 类 号：TU3[建筑科学—结构工程]