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Numerical Simulation of Soot Formation in a Turbulent Flame with a Monte-Carlo PDF Approach and Detailed Chemistry

 

作者: B. ZAMUNER,   F. DUPOIRIEUX,  

 

期刊: Combustion Science and Technology  (Taylor Available online 2000)
卷期: Volume 158, issue 1  

页码: 407-438

 

ISSN:0010-2202

 

年代: 2000

 

DOI:10.1080/00102200008947343

 

出版商: Taylor & Francis Group

 

关键词: Soot Formation;Turbulent Combustion;PDF models;Numerical Simulation

 

数据来源: Taylor

 

摘要:

The paper presents an original work in which a hybrid turbulent combustion model, based upon a stochastic evaluation of the Joint Scalar Probability Density Function (PDF), is used in conjunction with a skeletal soot model and a detailed kinetic mechanism for fuel oxidation. First, the Probabilistic Eulerian Lagrangian turbulent combustion model, which is theoretically able to describe chemical reactions occurring in a turbulent flow for a wide range of Damkohler numbers, is presented and justified. Then, the chemistry model which accounts for soot formation and oxidation is exposed and validated in rich ethylene premixed laminar flames. This modelling approach coupling turbulence and chemistry is eventually applied to predict soot levels in a turbulent jet diffusion flame of ethylene burning in still air. Results are in good agreement with experimental data and the peak value of soot volume fraction on the centreline is fairly well described even though an accurate radiative heat transfer model is still necessary to be more predictive on mean temperature levels.

 

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