A parametric study of microjet assisted methane/air turbulent flames
作者： Sirine Chouaieb , Wassim Kriaa , Hatem Mhiri , Philippe Bournot
DOI: 10.1016/J.ENCONMAN.2017.02.079
关键词: Turbulence 、 Nozzle 、 Thermal 、 Mechanics 、 Combustion 、 Reynolds number 、 Mass flow rate 、 Mixing (process engineering) 、 Optics 、 Chemistry 、 Soot
摘要: Abstract A parametric study of microjet assisted methane/air turbulent flames characteristics is numerically investigated. The Presumed Probability Density Function model and the Discrete Ordinates are respectively considered for combustion radiation modeling. k-epsilon Standard with Pope Correction adopted as a turbulence closure model. two step Tesner used to quantify soot particle production in flame configuration. Comparison our previous work using Realizable shows that ensures better predictions. velocity diameter effects on thermal field, mixing process emission then discussed. Numerical findings show can be an efficient tool controlling flames. On one hand, it shown creates inner vicinity central nozzle exit but does not globally alter shape. other enhanced high Reynolds number either by increasing or decreasing its constant mass flow rate. Soot consequently reduced low values.
sci-hub.se 参考文章(35)
Babak Kashir, Sadegh Tabejamaat, Nafiseh Jalalatian, The impact of hydrogen enrichment and bluff-body lip thickness on characteristics of blended propane/hydrogen bluff-body stabilized turbulent diffusion flames Energy Conversion and Management. ,vol. 103, pp. 1- 13 ,(2015) , 10.1016/J.ENCONMAN.2015.06.028
Shaoshuai Li, Yunzhe Zheng, Daniel Mira Martinez, Min Zhu, Xi Jiang, Large-eddy Simulation of Flow and Combustion Dynamics in a Lean Partially-premixed Swirling Combustor Energy Procedia. ,vol. 66, pp. 333- 336 ,(2015) , 10.1016/J.EGYPRO.2015.02.080
Tsan-Hsing Shih, A. Shabbir, W. W. Liou, Jiang Zhu, Z. Yang, A New K-epsilon Eddy Viscosity Model for High Reynolds Number Turbulent Flows: Model Development and Validation NASA STI/Recon Technical Report N. ,vol. 95, pp. 11442- ,(1994)
Salvador Navarro-Martinez, Stelios Rigopoulos, Differential Diffusion Modelling in LES with RCCE-Reduced Chemistry Flow Turbulence and Combustion. ,vol. 89, pp. 311- 328 ,(2012) , 10.1007/S10494-011-9370-Z
S BROOKES, J MOSS, Predictions of soot and thermal radiation properties in confined turbulent jet diffusion flames Combustion and Flame. ,vol. 116, pp. 486- 503 ,(1999) , 10.1016/S0010-2180(98)00056-X
E. H. Chui, G. D. Raithby, COMPUTATION OF RADIANT HEAT TRANSFER ON A NONORTHOGONAL MESH USING THE FINITE-VOLUME METHOD Numerical Heat Transfer Part B-fundamentals. ,vol. 23, pp. 269- 288 ,(1993) , 10.1080/10407799308914901
P.A. Tesner, T.D. Smegiriova, V.G. Knorre, Kinetics of dispersed carbon formation Combustion and Flame. ,vol. 17, pp. 253- 260 ,(1971) , 10.1016/S0010-2180(71)80168-2
Robert M. Woolley, Michael Fairweather, Yunardi, Conditional moment closure modelling of soot formation in turbulent, non-premixed methane and propane flames Fuel. ,vol. 88, pp. 393- 407 ,(2009) , 10.1016/J.FUEL.2008.10.005
Houda Mahmoud, Wassim Kriaa, Hatem Mhiri, Georges Le Palec, Philippe Bournot, A numerical study of a turbulent axisymmetric jet emerging in a co-flowing stream Energy Conversion and Management. ,vol. 51, pp. 2117- 2126 ,(2010) , 10.1016/J.ENCONMAN.2010.03.004
Yuchun CAO, Jinxing WU, Jianchun MI, Yu ZHOU, Flame Structure of a Jet Flame with Penetration of Side Micro-jets Chinese Journal of Chemical Engineering. ,vol. 16, pp. 861- 866 ,(2008) , 10.1016/S1004-9541(09)60006-9