NDLI: Analyses and assessments of span wise gust gradient data from nasa b-57b aircraft

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Analyses and assessments of span wise gust gradient data from nasa b-57b aircraft

Content Provider	NASA Technical Reports Server (NTRS)
Author	Chang, Ho-Pen Frost, Walter Ringnes, Erik A.
Copyright Year	1987
Description	Analysis of turbulence measured across the airfoil of a Cambera B-57 aircraft is reported. The aircraft is instrumented with probes for measuring wind at both wing tips and at the nose. Statistical properties of the turbulence are reported. These consist of the standard deviations of turbulence measured by each individual probe, standard deviations and probability distribution of differences in turbulence measured between probes and auto- and two-point spatial correlations and spectra. Procedures associated with calculations of two-point spatial correlations and spectra utilizing data were addressed. Methods and correction procedures for assuring the accuracy of aircraft measured winds are also described. Results are found, in general, to agree with correlations existing in the literature. The velocity spatial differences fit a Gaussian/Bessel type probability distribution. The turbulence agrees with the von Karman turbulence correlation and with two-point spatial correlations developed from the von Karman correlation.
File Size	10404390
Page Count	350
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19880000625
Archival Resource Key	ark:/13960/t7gr1t07b
Language	English
Publisher Date	1987-08-01
Access Restriction	Open
Subject Keyword	Aerodynamics Von Karman Equation Statistical Analysis Spectrum Analysis Wind Measurement B-57 Aircraft Airfoils Gusts Probability Distribution Functions Bessel Functions Probability Density Functions Digital Data Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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