[1]李会知,关罡,郑冰..风洞模拟大气边界层的数据处理[J].郑州大学学报(工学版),2002,23(04):64-67.[doi:10.3969/j.issn.1671-6833.2002.04.018]
　Lee Huizhi,Guan Gang,Zheng Bing.Data processing in wind tunnels simulating atmospheric boundary layers[J].Journal of Zhengzhou University (Engineering Science),2002,23(04):64-67.[doi:10.3969/j.issn.1671-6833.2002.04.018]

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风洞模拟大气边界层的数据处理()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

23

期数:

2002年04期

页码:

64-67

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Data processing in wind tunnels simulating atmospheric boundary layers

作者:

李会知; 关罡; 郑冰.

郑州大学土木工程学院,河南,郑州,450002, 郑州大学土木工程学院,河南,郑州,450002, 郑州大学土木工程学院,河南,郑州,450002

Author(s):

Lee Huizhi; Guan Gang; Zheng Bing

关键词:

大气边界层模拟;  风洞;  数据处理

Keywords:

atmospheric boundary layer simulation;  wind tunnel;  Data Processing

DOI:

10.3969/j.issn.1671-6833.2002.04.018

文献标志码:

A

摘要:

从平均风速剖面和湍流结构两个方面介绍了风洞模拟大气边界层试验中的数据处理方法,给出了通过曲线拟合方法求平均风速剖面对数律中的摩擦速度u*、动力粗糙高度z0和指数律中的指数α的公式,讨论了湍流积分尺度和边界层模拟比的计算,以及如何通过v～lnz曲线的趋势和指数α的离散程度判断平均风速剖面模拟合理性.分析结果指出,由于实际湍流特性数据的不充分,模拟流场的湍流特性参数会偏离某些文献数据不能说是不合理的.

Abstract:

The data processing methods in wind tunnel simulation atmospheric boundary layer test are introduced from the aspects of average wind speed profile and turbulence structure, and the formulas of friction velocity u*, dynamic roughness height z0 and exponential α in the exponential law are given by curve fitting method, the calculation of turbulence integration scale and boundary layer simulation ratio are discussed, and how to judge the rationality of average wind speed profile simulation by the trend of V~LNZ curve and the dispersion degree of exponential α. The analysis results point out that due to the insufficient turbulence characteristic data, the turbulence characteristic parameters of the simulated flow field will deviate from some literature data, which cannot be said to be unreasonable.

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