NDLI: A stereo imaging velocimetry technique for analyzing structure of flame balls at low lewis-number (sofball) data

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A stereo imaging velocimetry technique for analyzing structure of flame balls at low lewis-number (sofball) data

Content Provider	NASA Technical Reports Server (NTRS)
Author	Gray, Elizabeth McDowell, Mark
Copyright Year	2008
Description	Stereo Imaging Velocimetry (SIV) is a NASA Glenn Research Center (GRC) developed fluid physics technique for measuring threedimensional (3-D) velocities in any optically transparent fluid that can be seeded with tracer particles. SIV provides a means to measure 3-D fluid velocities quantitatively and qualitatively at many points. This technique provides full-field 3-D analysis of any optically clear fluid or gas experiment using standard off-the-shelf CCD cameras to provide accurate and reproducible 3-D velocity profiles for experiments that require 3-D analysis. A flame ball is a steady flame in a premixed combustible atmosphere which, due to the transport properties (low Lewis-number) of the mixture, does not propagate but is instead supplied by diffusive transport of the reactants, forming a premixed flame. This flame geometry presents a unique environment for testing combustion theory. We present our analysis of flame ball phenomena utilizing SIV technology in order to accurately calculate the 3-D position of a flame ball(s) during an experiment, which can be used as a direct comparison of numerical simulations.
File Size	1974503
Page Count	25
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20080018473
Archival Resource Key	ark:/13960/t2r54mb48
Language	English
Publisher Date	2008-04-01
Access Restriction	Open
Subject Keyword	Ccd Cameras Transport Properties Fluid Dynamics Premixing Imaging Techniques Combustion Pattern Recognition Velocity Distribution Velocity Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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