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Power spectral density analysis of wind-shear turbulence for related flight simulationsMeteorological phenomena known as microbursts can produce abrupt changes in wind direction and/or speed over a very short distance in the atmosphere. These changes in flow characteristics have been labelled wind shear. Because of its adverse effects on aerodynamic lift, wind shear poses its most immediate threat to flight operations at low altitudes. The number of recent commercial aircraft accidents attributed to wind shear has necessitated a better understanding of how energy is transferred to an aircraft from wind-shear turbulence. Isotropic turbulence here serves as the basis of comparison for the anisotropic turbulence which exists in the low-altitude wind shear. The related question of how isotropic turbulence scales in a wind shear is addressed from the perspective of power spectral density (psd). The role of the psd in related Monte Carlo simulations is also considered.
Document ID
19880011389
Document Type
Thesis/Dissertation
Authors
Laituri, Tony R. (Michigan Technological Univ. Houghton, MI, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1988
Subject Category
METEOROLOGY AND CLIMATOLOGY
Report/Patent Number
NASA-CR-182721
NAS 1.26:182721
Funding Number(s)
CONTRACT_GRANT: NAG1-717
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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