NDLI: Supersonic combusting jet experiments for code development and validation

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Supersonic combusting jet experiments for code development and validation

Content Provider	NASA Technical Reports Server (NTRS)
Author	Cutler, Andrew D. Magnotti, G.
Copyright Year	2008
Description	Computational fluid dynamics (CFD) methods based on the Reynolds averaged Navier-Stokes (RANS) equations are extensively employed in the design of hypersonic airbreathing engines. A fundamental weakness in these methods is the accurate mathematical modeling of turbulence and turbulence-combustion interactions. This paper is one of a companion pair of papers which describe the use of the combined dual pump CARS and newly developed interferometric Rayleigh scattering optical system to acquire time-accurate turbulence and mixing data with which to aid calibration and verification of the current turbulence models. This test program consisted of a pilot laboratory-scale experiment used to develop the optical system and data acquisition techniques, and a significantly larger experiment to acquire the necessary turbulence data. The flow is an axially-symmetric, supersonic, combusting, free jet that provides good optical access, consisting of a central jet of hot "vitiated air" and a coflow jet of hydrogen or ethylene fuel. In this paper the development of both experiments is described. Facility and flow visualization data are presented for various types of flames, including the flames selected for detailed study with the CARS/Rayleigh optical techniques.
File Size	766596
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20080020519
Archival Resource Key	ark:/13960/t3kx0cn1r
Language	English
Publisher Date	2008-05-12
Access Restriction	Open
Subject Keyword	Air Transportation And Safety Navier-stokes Equation Hydrogen Fuels Computational Fluid Dynamics Data Acquisition Calibrating Turbulence Models Ethylene Supersonic Jet Flow Flow Visualization Reynolds Averaging Air Breathing Engines 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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