NDLI: Aircraft wake vortex measurements at denver international airport

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Aircraft wake vortex measurements at denver international airport

Content Provider	NASA Technical Reports Server (NTRS)
Author	Wang, Frank Y. Fenichel, Neil Dougherty, Robert P. D'Errico, Robert E. Booth, Earl R. Watts, Michael E.
Copyright Year	2004
Description	Airport capacity is constrained, in part, by spacing requirements associated with the wake vortex hazard. NASA's Wake Vortex Avoidance Project has a goal to establish the feasibility of reducing this spacing while maintaining safety. Passive acoustic phased array sensors, if shown to have operational potential, may aid in this effort by detecting and tracking the vortices. During August/September 2003, NASA and the USDOT sponsored a wake acoustics test at the Denver International Airport. The central instrument of the test was a large microphone phased array. This paper describes the test in general terms and gives an overview of the array hardware. It outlines one of the analysis techniques that is being applied to the data and gives sample results. The technique is able to clearly resolve the wake vortices of landing aircraft and measure their separation, height, and sinking rate. These observations permit an indirect estimate of the vortex circulation. The array also provides visualization of the vortex evolution, including the Crow instability.
File Size	1791873
Page Count	13
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20040070828
Archival Resource Key	ark:/13960/t0vq7wq0m
Language	English
Publisher Date	2004-01-01
Access Restriction	Open
Subject Keyword	Aircraft Design, Testing And Performance Phased Arrays Beamforming Runways Vortex Avoidance Data Acquisition Vortices Signal Detectors Aircraft Wakes Airports Aeroacoustics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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