粗糙元特征对风洞中大气表面层模拟的影响

王丽; 王元; 王大伟

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粗糙元特征对风洞中大气表面层模拟的影响

专题研究 | 更新时间：2025-07-09

- 粗糙元特征对风洞中大气表面层模拟的影响
- Effect of Roughness Elements on the Wind Tunnel Simulation of Atmospheric Surface Layer
- 西安交通大学学报 2009年43卷第3期页码：87-91
- 作者机构：
  
  西安交通大学流体工程系,西安,710049
- 作者简介：
- 基金信息：
  
  : 2008-05-30. 作者简介: 王丽(1980-),女,博士生;王元(联系人),男,教授,博士生导师. 基金项目: 国家科技攻关“十五”计划专项经费资助项目(2004BA901A21);新疆自治区科技发展计划“十五”攻关重大项目(200833121)
- DOI：
  中图分类号： O357.4
- 网络首发：2009-03-10，
  
  纸质出版：2009
- 稿件说明：
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王丽, 王元, 王大伟. 粗糙元特征对风洞中大气表面层模拟的影响[J]. 西安交通大学学报, 2009,43(3):87-91.

Effect of Roughness Elements on the Wind Tunnel Simulation of Atmospheric Surface Layer[J]. 2009, 43(3): 87-91.
王丽, 王元, 王大伟. 粗糙元特征对风洞中大气表面层模拟的影响[J]. 西安交通大学学报, 2009,43(3):87-91. DOI：

Effect of Roughness Elements on the Wind Tunnel Simulation of Atmospheric Surface Layer[J]. 2009, 43(3): 87-91. DOI：

摘要

采用不同尺度、不同铺设密度的二维正方形粗糙元

在环境风洞中对大气表面层进行了模拟.使用粒子图像速度场仪对所模拟的大气表面层风速廓线、湍流强度进行了测量.结果表明:当粗糙元的铺设长度达到实验段入口高度的12倍以上时

依靠自然形成法所模拟的对数风速廓线高度可达实验段高度的60%; 空气动力学粗糙度Z

最高可达粗糙元尺度的0.4～0.5倍

且Z

随粗糙元铺设区到测量断面的距离呈指数变化; 同一高度上湍流强度随粗糙元铺设间距的增加而减小

当廓线高度达到实验段高度的40%以上时

湍流强度不随粗糙元大小及铺设密度的变化而变化

其大小为12%～13%.实际应用中

在已知所需Z

和摩阻风速U

的情况下

可通过粗糙元尺度及铺设密度的不同组合获得满足要求的大气表面层

并确定实验模型区的位置和实验段的入口风速.

Abstract

In the wind tunnel

the atmospheric surface layer was simulated by the naturally forming method with square-bar roughness elements having different height and different paving density. The atmospheric surface layer profiles and turbulence intensities were measured by particle image velocimetry. The results show that when the paving length is more than 12 times of the inlet height of the experimental section

and the profiles' logarithmic height can be 60% of the experimental section height. The maximum value of the aerodynamics roughness

is about 40%-50% of the roughness element height

and Z

changes exponentially with the distance from the last roughness elemen

t to model position. Moreover

at the same level

the turbulence intensities decrease with the increase of the paving distance. When the level reaches more than 40% of the experimental section height

the turbulence intensities are almost the same. Our results indicate that

in the practical application

the required atmospheric surface layer can be achieved by the different combination of roughness element height with paving density

and the experimental model position and the section inlet velocity can be determined if the needed Z

and U

are known.

关键词

Keywords

references

莱赫特曼.大气边界层物理学 [M].濮培民,译.北京:科学出版社,1982:122.

HAUGEN D.微气象学 [M].李兴生等,译. 北京: 科学出版社,1984:15,82.

CERMAK J E. Use of wind tunnels in the study of atmospheric phenomenon [C]∥Air Pollution Control Association's Annual Meeting. Philadelphia, Pennsylvania,USA:APCA, 1958:58-32.

王元.沙漠——绿洲过滤带流沙起动规律及防护模式模拟实验研究 [D]. 西安: 西安交通大学能源与动力工程学院,1998.

PERRY A E,SCHOFIELD W H. Rough wall turbulent boundary layers [J]. Journal of Fluid Mechanics, 1969, 37(2):383-413.

ANTONIA R A,LUXTON R E. The response of a turbulent boundary layer to a step change in surface roughness: smooth to rough [J]. Journal of Fluid Mechanics, 1971,48(4): 721-761.

LIU C K,KLINE S J. An experimental study of turbulent boundary layers on rough walls, Report MD-15 [R]. Stanford, California, USA:Stanford University. Department of Mechanical Engineering, 1966.

LEE B E,SOLIMAN B F. An investigation of the forces on three dimensional bluff Bodies in rough wall turbulent boundary layers [J].Journal of Fluids Engineering, 1977,99(9):503-510.

FANG C, SILL B L. Aerodynamic roughness length: correlation with roughness elements [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1992, 41(1):449-460.

王元,张鸿雁.大气表面层与风沙现象相似参数的研究[J].中国沙漠,1994,14(1):10-16.

WANG Yuan, ZHANG Hongyan. The study on similarity parameters of the atmospheric surface layer and phenomena of drift sand[J]. Journal of Desert Research, 1994, 14(1): 10-16.

吴正.风沙地貌与治沙工程学 [M].北京:科学出版社,2003.

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