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130211e19971212dcu o| f1|||||eng|d |
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|a (TOE)ost671897
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|a (TOE)671897
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|a TOE
|c TOE
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|a GDWR
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|a 40
|2 edbsc
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|a E 1.99: conf-980804--
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|a E 1.99:sand--98-8474c
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|a E 1.99: conf-980804--
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|a sand--98-8474c
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|a conf-980804--
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|a Planar laser-induced fluorescence imaging of flame heat release rate
|h [electronic resource]
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| 260 |
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|a Washington, D.C. :
|b United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
|c 1997.
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| 300 |
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|a 21 p. :
|b digital, PDF file.
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| 336 |
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|a text
|b txt
|2 rdacontent.
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| 337 |
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|a computer
|b c
|2 rdamedia.
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| 338 |
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|a online resource
|b cr
|2 rdacarrier.
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|a Published through the Information Bridge: DOE Scientific and Technical Information.
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| 500 |
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|a 12/12/1997.
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| 500 |
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|a "sand--98-8474c"
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|a " conf-980804--"
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|a "DE98052540"
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| 500 |
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|a 27. international symposium on combustion, Boulder, CO (United States), 2-7 Aug 1998.
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| 500 |
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|a Paul, P.H.; Najm, H.N.
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| 520 |
3 |
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|a Local heat release rate represents one of the most interesting experimental observables in the study of unsteady reacting flows. The direct measure of burning or heat release rate as a field variable is not possible. Numerous experimental investigations have relied on inferring this type of information as well as flame front topology from indirect measures which are presumed to be correlated. A recent study has brought into question many of the commonly used flame front marker and burning rate diagnostics. This same study found that the concentration of formyl radical offers the best possibility for measuring flame burning rate. However, primarily due to low concentrations, the fluorescence signal level from formyl is too weak to employ this diagnostic for single-pulse measurements of turbulent reacting flows. In this paper the authors describe and demonstrate a new fluorescence-based reaction front imaging diagnostic suitable for single-shot applications. The measurement is based on taking the pixel-by-pixel product of OH and CH₂O planar laser-induced fluorescence images to yield an image closely related to a reaction rate. The spectroscopic and collisional processes affecting the measured signals are discussed and the foundation of the diagnostic, as based on laminar and unsteady flame calculations, is presented. The authors report the results of applying this diagnostic to the study of a laminar premixed flame subject to an interaction with an isolated line-vortex pair.
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| 536 |
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|b AC04-94AL85000.
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| 650 |
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|a Methane.
|2 local.
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| 650 |
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7 |
|a Formyl Radicals.
|2 local.
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| 650 |
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7 |
|a Ethers.
|2 local.
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| 650 |
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|a Heat Transfer.
|2 local.
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| 650 |
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|a Flames.
|2 local.
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| 650 |
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|a Methanol.
|2 local.
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| 650 |
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|a Combustion Kinetics.
|2 local.
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| 650 |
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|a Formaldehyde.
|2 local.
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| 650 |
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|a Hydroxyl Radicals.
|2 local.
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| 650 |
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|a Fluorescence Spectroscopy.
|2 local.
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| 650 |
|
7 |
|a Chemistry.
|2 edbsc.
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| 710 |
2 |
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|a Sandia National Laboratories.
|4 res.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|b Office of Energy Efficiency and Renewable Energy.
|4 spn.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
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| 856 |
4 |
0 |
|u http://www.osti.gov/servlets/purl/671897-dGfeyA/webviewable/
|z Online Access
|
| 907 |
|
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|a .b56432732
|b 03-06-23
|c 12-16-09
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| 998 |
|
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|a web
|b 12-16-09
|c f
|d m
|e p
|f eng
|g dcu
|h 0
|i 3
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|a Information bridge
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|i 91edd242-8457-5a94-80c2-76e5b98b07cb
|s 1de7edc0-543e-56ca-b50d-4781a1457127
|
| 952 |
f |
f |
|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99: conf-980804--
|h Superintendent of Documents classification
|i web
|n 1
|
