NDLI: Temperature, pressure, and infrared image survey of an axisymmetric heated exhaust plume

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Temperature, pressure, and infrared image survey of an axisymmetric heated exhaust plume

Content Provider	NASA Technical Reports Server (NTRS)
Author	Birckelbaw, Larry D. Turk, Jeffrey A. Mahan, J. Robert Wardwell, Douglas A. Nelson, Edward L. Hange, Craig E.
Copyright Year	1996
Description	The focus of this research is to numerically predict an infrared image of a jet engine exhaust plume, given field variables such as temperature, pressure, and exhaust plume constituents as a function of spatial position within the plume, and to compare this predicted image directly with measured data. This work is motivated by the need to validate computational fluid dynamic (CFD) codes through infrared imaging. The technique of reducing the three-dimensional field variable domain to a two-dimensional infrared image invokes the use of an inverse Monte Carlo ray trace algorithm and an infrared band model for exhaust gases. This report describes an experiment in which the above-mentioned field variables were carefully measured. Results from this experiment, namely tables of measured temperature and pressure data, as well as measured infrared images, are given. The inverse Monte Carlo ray trace technique is described. Finally, experimentally obtained infrared images are directly compared to infrared images predicted from the measured field variables.
File Size	5874492
Page Count	158
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19960015541
Archival Resource Key	ark:/13960/t2n63gc3m
Language	English
Publisher Date	1996-02-01
Access Restriction	Open
Subject Keyword	Mechanical Engineering Temperature Distribution Exhaust Gases Pressure Distribution Ray Tracing Infrared Radiation Numerical Flow Visualization Jet Exhaust Monte Carlo Method Infrared Imagery Radiative Heat Transfer Plumes Axisymmetric Flow 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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