The Effects of Probe-Induced Flow Distortion on Velocity Covariances: Field Observations

被引：0

作者：

David O. Miller

Chenning Tong

John C. Wyngaard

机构：

[1] Pennsylvania State University,Department of Meteorology

[2] Pennsylvania State University,Department of Meteorology, Department of Mechanical Engineering, and Department of Geo

来源：

Boundary-Layer Meteorology | 1999年 / 91卷

关键词：

Turbulence; Flow distortion; Sonic anemometers;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We carried out measurements to test a simple theory of the effect of probe-induced flow distortion on turbulence measurements. We used two three-component sonic anemometers mounted 1.8m apart at a height of 6.7 m. Behind one was a horizontal circular cylinder of radius 0.15 m and length 1.2 m, chosen to model two-dimensional probe-induced flow distortion in the limit where the scale of the turbulence is very large compared to the scale of the probe. The second sonic anemometer measured the undistorted flow. The measured flow-distortion effects on the Reynolds shearing stress and the variances of streamwise and vertical velocity agree well with the theory.

引用

页码：483 / 493

页数：10

共 20 条

[1]

Bearman P. W.(1972)Some Measurements of the Distortion of Turbulence Approaching a Two-Dimensional Bluff Body J. Fluid Mech. 53 451-467

[2]

Britter R. E.(1979)The Distortion of Turbulence by a Circular Cylinder J. Fluid Mech. 92 269-301

[3]

Hunt J. C. R.(1970)Comparison of Tower Influence on Wind Velocity for NASA's 150-Meter Meteorological Tower and a Wind Tunnel Model of the Tower J. Geophys. Res. 75 1117-1121

[4]

Mumford J. C.(1968)Tower-Induced Errors in Wind Profile Measurements J. Appl. Meteorol. 7 359-366

[5]

Camp D. W.(1968)Wind Disturbance by a Vertical Cylinder in the Atmospheric Surface Layer J. Appl. Meteorol. 7 367-371

[6]

Kaufman J. W.(1982)A Critical Evaluation of the Aerodynamical Error of a Turbulence Instrument J. Appl. Meteorol. 21 1838-1844

[7]

Dabberdt W. F.(1973)A Theory of Turbulent Flow Round Two-Dimensional Bluff Bodies J. Fluid Mech. 61 625-706

[8]

Dabberdt W. F.(1970)Wind Speeds as Measured by Cup and Sonic Anemometers and Influenced by Tower Structure J. Appl. Meteorol. 9 851-856

[9]

Högström U.(1979)Upwind Distortion Due To Probe Support in Boundary-Layer Observations J. Appl. Meteorol. 18 367-370

[10]

Hunt J. C. R.(1980)A Revaluation of the Kansas Mast Influence on Measurements of Stress and Cup Anemometer Overspeeding Boundary-Layer Meteorol. 18 411-430

← 1 2 →