Turbulent nonpremixed

Masri, A.R., Dibble, R.W., and Barlow, R.S., The structure of turbulent nonpremixed flames revealed by Raman-Rayleigh-LIF measurements. Prog. Energy Combust. Sci., 22,307,1996. 

The relevance of nonpremixed edge flames to turbulent nonpremixed flames can be described in two aspects. One is the mechanism of turbulent nonpremixed lifted flames and the other, the flame-hole dynamics. For turbulent lifted flames in nonpremixed jets, the liftoff height is linearly dependent on jet velocity. There have... 

Temporal sequence of OH-LIF measurements captures a localized extinction event in a turbulent nonpremixed CH4/H2/N2 jet flame (Re 20,000) as a vortex perturbs the reaction zone. The time between frames is 125 ps. The velocity field from PIV measurements is superimposed on the second frame and has the mean vertical velocity of 9m/s subtracted. (From Hult, J. et al.. Paper No. 26-2, in 10th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, 2000. With permission.)... 

Turbulent nonpremixed flames contain a wide range of lengfh scales. For a given flame geomefry, fhe largest scales of furbulence are determined by the overall width of an unconfined jef flame or by fhe dimensions of the hardware that contain the flow. Therefore, the largest scales of turbulent motion are typically independent of Reynolds number. As the Re5molds number increases. 

Barlow, R. S., Editor International workshop on measurement and computation of turbulent nonpremixed flames in http //www.ca.sandia.gov/TNE... 

Barlow, R. S., R. W. Dibble, J.-Y. Chen, and R. P. Lucht (1990). Effect of Damkohler number on superequilibrium OH concentration in turbulent nonpremixed jet flames. Combustion and Flame 82, 235-251. 

Biagioli, F. (1997). Modeling of turbulent nonpremixed combustion with the PDF transport method comparison with experiments and analysis of statistical error. In G. D. Roy, S. M. Frolow, and P. Givi (eds.), Advanced Computation and Analysis of Combustion. ENAS Publishers. 

Cha, C. M., G. Kosaly, and H. Pitsch (2001). Modeling extinction and reignition in turbulent nonpremixed combustion using a doubly-conditional moment closure approach. Physics of Fluids 13, 3824-3834. 

Chen, J. Y. and W. Kollmann (1988). PDF modeling of chemical nonequilibrium effects in turbulent nonpremixed hydrocarbon flames. In Twenty-second Symposium (International) on Combustion, pp. 645-653. Pittsburgh, PA The Combustion Institute. 

Chen, J. Y., W. Kollmann, and R. W. Dibble (1989). PDF modeling of turbulent nonpremixed methane jet flames. Combustion Science and Technology 64, 315-346. 

Pdf modeling of finite-rate chemistry effects in turbulent nonpremixed jet flames. 

Masri, A. R. and S. B. Pope (1990). PDF calculations of piloted turbulent nonpremixed flames of methane. Combustion and Flame 81, 13-29. 

Swaminathan, N. and R. W. Bilger (1997). Direct numerical simulation of turbulent nonpremixed hydrocarbon reaction zones using a two-step reduced mechanism. Combustion Science and Technology 127, 167-196. 

PDF calculations of turbulent nonpremixed flames with local extinction. Combustion and Flame 123, 281-307. 

DesJardin, P. E., and S. H. Frankel. 1998. Large-eddy simulation of a turbulent nonpremixed reacting jet Application and assessment of subgrid-scale combustion models. J. Physics Fluids 10(9) 2298-314. 

Self-excited combustion instabilities are associated with the propagation and reflection of heat-release-induced acoustic waves and their interactions. Hence, flame sound represents the main source of these acoustic waves. Therefore, sound pressure level (SPL) data for turbulent nonpremixed jet flames have been obtained for two Turbulent Nonpremixed Flame (TNF) workshop flames, DLR-A and DLR-B [1]. The exit Reynolds numbers (Re) for the two flames based on injected gas properties at room temperature were 15.200 (DLR-A) and 22,800 (DLR-B). Air was used for studying the sound emission from equivalent nonreacting jets. The flow in each case had very low exit Mach numbers (M = 0.04-... 

Masri, A. R., Dibble, R. W., and Barlow, R. S. "The Structure of Turbulent Nonpremixed Flames Revealed by Raman-Rayleigh-LIF Measurements." Progress in Energy Combustion Science 22 (1996) 307-62. 

Wang, C., and Barlow, R. S. "Spatial Resolution Effects on the Measurement of Scalar Variance and Scalar Gradient in Turbulent Nonpremixed Jet Flames." Experiments in Fluids 44 (2008) 633-45. 

Taing, S., Masri, A.R., Pope, S.B. precalculations of turbulent nonpremixed flames of H2/CO2 using reduced chemical mechanisms. Combust. Flame 95, 133-150 (1993)... 

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