This paper presents results from an Air Force program being conducted by researchers at Brigham Young University (BYU) Wright-Patterson Air Force Base (WPAFB), and Pratt and Whitney (P&W). This study is part of a comprehensive effort being supported by the Aero Propulsion and Power Laboratory at Wright-Patterson Air Force Base, and Pratt and Whitney in which simple and complex diffusion flames are being studied to understand better the fundamentals of gas turbine combustion near lean blowout. The program’s long-term goal is to improve the design methodology of gas turbine combustors. This paper focuses on four areas of investigation: (1) digitized images from still film photographs to document the observed flame structures as fuel equivalence ratio was varied, (2) sets of LDA data to quantify the velocity flow fields existing in the burner (3) CARS measurements of gas temperature to determine the temperature field in the combustion zone, and to evaluate the magnitude of peak temperature, and (4) two-dimensional images of OH radical concentrations using PLIF to document the instantaneous location of the flame reaction zones.

1.
Boyack, K. W., and Hedman, P. O., 1990, “Dual-Stokes CARS System for Simultaneous Measurement of Temperature and Multiple Species in Turbulent Flames,” Twenty-Third Symposium (International) on Combustion, The Combustion Institute, Pittsburgh, PA.
2.
Hancock
R. D.
,
Hedman
P. O.
, and
Kramer
S. K.
,
1991
, “
Coherent Anti-Stokes Raman Spectroscopy (CARS) Temperature and Species Concentration Measurements in Coal-Seeded Flames
,”
Combustion and Flame
, Vol.
71
, pp.
593
604
.
3.
Hancock, R. D., Boyack, K. W., and Hedman, P. O., 1992, “Coherent Anti-Stokes Raman Spectroscopy (CARS) in Pulverized Coal Flames,” Advances in Coal Spectroscopy, Henk L. C. Meuzelaar, ed., Plenum Publishing Company, pp. 373–407.
4.
Roquemore, W. M., Reddy, V. K., Hedman, P. O., Post, M. E., Chen, T. H., Goss, L. P., Trump, D., Vilimpoc, V., and Sturgess, G. J., 1991, “Experimental and Theoretical Studies in a Gas-Fueled Research Combustor,” Paper No. AIAA 91-0639.
5.
Sturgess, G. J., Heneghan, S. P., Vangsness, M. D., Ballal, D. R., and Lesmerises, A. L., 1991a, “Lean Blowout in a Research Combustor at Simulated Low Pressures,” ASME Paper No. 91-GT-359.
6.
Sturgess, G. J., Sloan, D. G., Roquemore, W. M., Reddy, V. K., A. L. Shouse, D., Lesmerises, A. L., Ballal, D. R., Heneghan, S. P., Vangsness, M. D., and Hedman, P. O., 1991b, “Flame Stability and Lean Blowout—A Research Program Progress Report,” Proceedings of the 10th ISABE Conference, Nottingham, United Kingdom, pp. 372–384.
7.
Sturgess
G. J.
,
Sloan
D. G.
,
Lesmerises
A. L.
,
Heneghan
S. P.
, and
Ballal
D. R.
,
1992
, “
Design and Development of a Research Combustor for Lean Blowout Studies
,”
ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol.
114
, pp.
13
19
.
8.
Sturgess
G. J.
,
Heneghan
S. P.
,
Vangsness
M. D.
,
Ballal
D. R.
,
Lesmerises
A. L.
, and
Shouse
D.
,
1993
, “
Effects of Back-Pressure in a Lean Blowout Research Combustor
,”
ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol.
115
, pp.
486
498
.
9.
Sturgess, G. J., and Shouse, D., 1993, “Lean Blowout Research in a Generic Gas Turbine Combustor With High Optical Access,” ASME Paper No. 93-GT-332.
This content is only available via PDF.
You do not currently have access to this content.