| 环境模拟实验室中近地层风速廓线的形成研究 |
| |
| 引用本文： | 曾波,张鸿雁,孟庆龙.环境模拟实验室中近地层风速廓线的形成研究[J].力学与实践,2012,34(1):31-34. |
| |
| 作者姓名： | 曾波 张鸿雁 孟庆龙 |
| |
| 作者单位： | 1. 西安建筑科技大学环境与市政工程学院, 西安 710055;
2. 西安交通大学生态环境与环境力学中心, 西安 710049 |
| |
| 基金项目： | 陕西省教育厅专项科研计划项目，国家教学质量工程项目 |
| |
| 摘 要： | 在环境模拟实验室中利用阻尼网对实验区形成的近地层风速廓线进行了数值模拟和实验研究.阻尼网的布置方案以变孔隙率阻尼网作为指导,选用30目和16目定孔隙率阻尼网4种不同高度的混合式布置方式.数值模拟采用Fluent软件,将结构复杂的阻尼网简化为具有一定厚度的多孔介质模型,湍流模型为标准k-\varepsilon模型.结果表明可将阻尼网作为多孔介质处理,定孔隙率阻尼网的组合可在短实验段内形成所需近地层的风速廓线,模拟值与实验值吻合良好.
|
| 关 键 词： | 阻尼网 多孔介质 风速廓线 数值模拟 |
| 收稿时间： | 2011-05-18; |
THE FORMATION OF WIND PROFILE IN ENVIRONMENT SIMULATION LABORATORY |
| |
| ZENG Bo,ZHANG Hongyan,MENG Qinglong.THE FORMATION OF WIND PROFILE IN ENVIRONMENT SIMULATION LABORATORY[J].Mechanics and Engineering,2012,34(1):31-34. |
| |
| Authors: | ZENG Bo ZHANG Hongyan MENG Qinglong |
| |
| Institution: | 1. School of Environment & Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. The Center for Environment & Mechanics, Xi'an Jiaotong University, Xi'an 710049, China |
| |
| Abstract: | The numerical simulation and the experimental test are used to investigate the formation of the wind profile of the neutral atmospheric surface layer by screens in the environment simulation laboratory.Taking the screen layout program with variations of porosity of screens as a guide,30 meshes and 16 meshes with fixed porosity of screens with respective heights of four screen layer collocations are selected.The complex screens are simplified as the porous media model and the k-e model in using the software Fluent.The results show that the screens can be simulated with the porous media and the wind profile can be formed by the compounding of fixed porosity screens in a short experimental section.The simulation results agree well with those of experiment. |
| |
| Keywords: | screens porous media wind profile numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《力学与实践》浏览原始摘要信息 |
| 点击此处可从《力学与实践》下载免费的PDF全文 |
|
