Mean and turbulent motion in and above a canyon

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Title Mean and turbulent motion in and above a canyon
Publication Type thesis
School or College College of Mines & Earth Sciences
Department Atmospheric Sciences
Author Lyon, James Kenneth
Date 1973-02
Description F i e l d measurements and wind tunnel simulations of a canyon wind have been conducted. It is found that the main characteristics of the vertical distribution of the mean canyon wind are : (1) a strong jet flow fills the entire depth of the canyon, (2) a change in wind direction at about the canyon top, and (3) a comparatively weak return flow of about the same depth as the canyon jet occurs above the canyon top with its maximum about 25% of the maximum of the canyon jet. Simulation of the canyon flow in the wind tunnel reveals similar characteristics in the mean velocity profile measured in the canyon. It is also found that the maximum intensities of the longitudinal and vertical components of the turbulent motion as well as the vertical eddy transport of longitudinal momentum occurs near the maximum shear of the mean velocity in the flow. By assuming similarity between the flows in the canyon and wind tunnel, estimations are made of the maximum intensities of the longitudinal and vertical components of the turbulent motion and the vertical eddy transport of longitudinal momentum in the canyon.
Type Text
Publisher University of Utah
Subject Wind; Turbulence; Canyons
Dissertation Institution University of Utah
Dissertation Name MS
Language eng
Relation is Version of Digital reproduction of "Mean and turbulent motion in and above a canyon" J. Willard Marriott Library Special Collections QC3.5 1973 .L87
Rights Management © James Kenneth Lyon, Jr.
Format application/pdf
Format Medium application/pdf
Format Extent 496,985 bytes
Identifier us-etd2,127601
Source Original: University of Utah J. Willard Marriott Library Special Collections
Conversion Specifications Original scanned on Epson GT-30000 as 400 dpi to pdf using ABBYY FineReader 9.0 Professional Edition.
ARK ark:/87278/s6dr392k
Setname ir_etd
ID 193319
Reference URL https://collections.lib.utah.edu/ark:/87278/s6dr392k
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