A LABORATORY MODEL OF TURBULENT CONVECTION IN THE ATMOSPHERIC BOUNDARY-LAYER

被引：22

作者：

CENEDESE, A

QUERZOLI, G

机构：

[1] Department of Mechanics and Aeronautics, University of Rome La Sapienza, Roma

来源：

ATMOSPHERIC ENVIRONMENT | 1994年 / 28卷 / 11期

关键词：

CONVECTION; LASER DOPPLER ANEMOMETRY; TURBULENCE;

D O I：

10.1016/1352-2310(94)90330-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A laboratory model of the Convective Atmospheric Boundary Layer, consisting of a convection chamber, is used in order to carry out an experimental analysis of the flow field. The thermal structure and the turbulence statistics moments are investigated. Temperature was measured by a thermocouple while vertical velocity was sensed by a Laser-Doppler anemometer. Using the Convective Boundary Layer scaling, turbulent, heat flux, vertical velocity and temperature variance, and probability distributions are presented and compared with other experiments, both in the atmosphere and in laboratory models. Autocorrelation and spectra are evaluated as well. The overall agreement of the present results with other data suggests that a satisfying simulation of the Convective Boundary Layer has been reached although a mean wind was not present in the tank.

引用

页码：1901 / 1913

页数：13

共 26 条

[1] BAERENTSEN JH, 1984, ATMOS ENVIRON, V18, P701, DOI 10.1016/0004-6981(84)90256-7
[2] TURBULENCE STRUCTURE IN CONVECTIVE BOUNDARY-LAYERS AND IMPLICATIONS FOR DIFFUSION
CAUGHEY, SJ
KITCHEN, M
LEIGHTON, JR
[J]. BOUNDARY-LAYER METEOROLOGY, 1983, 25 (04) : 345 - 352
[3] Coulman C. E., 1978, Boundary-Layer Meteorology, V14, P493, DOI 10.1007/BF00121890
[4] FURTHER RESULTS FROM A LABORATORY MODEL OF THE CONVECTIVE PLANETARY BOUNDARY-LAYER
DEARDORFF, JW
WILLIS, GE
[J]. BOUNDARY-LAYER METEOROLOGY, 1985, 32 (03) : 205 - 236
[5] DEARDORFF JW, 1970, J ATMOS SCI, V27, P1211, DOI 10.1175/1520-0469(1970)027<1211:CVATSF>2.0.CO
[6] 2
[7] HILDEBRAND PH, 1984, J ATMOS SCI, V41, P76, DOI 10.1175/1520-0469(1984)041<0076:UEOTCB>2.0.CO
[8] 2
[9] JENSON L, 1988, 4TH INT S APPL LASER
[10] KAIMAL JC, 1976, J ATMOS SCI, V41, P76

← 1 2 3 →