Quantitative 2D Temperature Imaging in Turbulent Nonpremixed Jet Flames using Filtered Rayleigh Scattering

2017 ◽  
Author(s):  
Thomas A. McManus ◽  
Jeffrey A. Sutton
Keyword(s):  
Rayleigh Scattering ◽  
Jet Flames ◽  
Temperature Imaging ◽  
Turbulent Nonpremixed

Mixing in jet flames by laser Rayleigh scattering

1983 ◽  
Author(s):  
D. YEE ◽  
P. MALTE ◽  
P. KAMBER
Keyword(s):  
Rayleigh Scattering ◽  
Jet Flames

Multi-kHz temperature imaging in turbulent non-premixed flames using planar Rayleigh scattering

2012 ◽  
Vol 108 (2) ◽  
pp. 377-392 ◽  
Author(s):  
R. A. Patton ◽  
K. N. Gabet ◽  
N. Jiang ◽  
W. R. Lempert ◽  
J. A. Sutton
Keyword(s):  
Rayleigh Scattering ◽  
Premixed Flames ◽  
Temperature Imaging

Filtered Rayleigh Scattering Thermometry in a Premixed Sooting Flame

Volume 4 ◽  
2004 ◽  
Author(s):  
Sean P. Kearney ◽  
Thomas W. Grasser ◽  
Steven J. Beresh
Keyword(s):  
Rayleigh Scattering ◽  
Volume Fraction ◽  
Imaging Techniques ◽  
Soot Volume Fraction ◽  
Image Data ◽  
Molecular Iodine ◽  
Line Center ◽  
Temperature Imaging ◽  
Planar Laser ◽  
Laser Induced Incandescence

Filtered Rayleigh Scattering (FRS) is demonstrated in a premixed, sooting ethylene-air flame. In sooting flames, traditional laser-based temperature-imaging techniques such linear (unfiltered) Rayleigh scatting (LRS) and planar laser-induced fluorescence (PLIF) are rendered intractable due to intense elastic scattering interferences from in-flame soot. FRS partially overcomes this limitation by utilizing a molecular iodine filter in conjunction with an injection-seeded Nd:YAG laser, where the seeded laser output is tuned to line center of a strong iodine absorption transition. A significant portion of the Doppler-broadened molecular Rayleigh signal is then passed while intense soot scattering at the laser line is strongly absorbed. In this paper, we demonstrate the feasibility of FRS for sooting flame thermometry using a premixed, ethylene-air flat flame. We present filtered and unfiltered laser light-scattering images, FRS temperature data, and laser-induced incandescence (LII) measurements of soot volume fraction for fuel-air equivalence ratios of φ = 2.19 and 2.24. FRS-measured product temperatures for these flames are nominally 1500 K. The FRS temperature and image data are discussed in the context of the soot LII results and a preliminary estimate of the upper sooting limit for our FRS system of order 0.1 ppm volume fraction is obtained.

Single-pulse, simultaneous multipoint multispecies Raman measurements in turbulent nonpremixed jet flames

1994 ◽  
Vol 19 (6) ◽  
pp. 414 ◽  
Author(s):  
Sastri P. Nandula ◽  
Peter A. DeBarber ◽  
Thomas M. Brown ◽  
Robert W. Pitz
Keyword(s):  
Single Pulse ◽  
Jet Flames ◽  
Turbulent Nonpremixed

Self-Similarity of Hydroxyl-Concentration Temporal Statistics in Turbulent Nonpremixed Jet Flames

AIAA Journal ◽  
2000 ◽  
Vol 38 (7) ◽  
pp. 1230-1236 ◽  
Author(s):  
Michael W. Renfro ◽  
Jay P. Gore ◽  
Galen B. King ◽  
Normand M. Laurendeau
Keyword(s):  
Self Similarity ◽  
Jet Flames ◽  
Temporal Statistics ◽  
Turbulent Nonpremixed

Reaction zone structure in turbulent nonpremixed jet flames—from CH-OH PLIF images

2000 ◽  
Vol 122 (1-2) ◽  
pp. 1-19 ◽  
Author(s):  
Jeffrey M. Donbar ◽  
James F. Driscoll ◽  
Campbell D. Carter
Keyword(s):  
Reaction Zone ◽  
Jet Flames ◽  
Zone Structure ◽  
Turbulent Nonpremixed
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