A Methodology for Soot Prediction Including Thermal Radiation in Complex Industrial Burners

被引：21

作者：

Lecocq, Guillaume ^{[1
]}

Poitou, Damien ^{[1
]}

Hernandez, Ignacio ^{[1
]}

Duchaine, Florent ^{[1
]}

Riber, Eleonore ^{[1
]}

Cuenot, Benedicte ^{[1
]}

机构：

[1] CERFACS, CFD Team, F-31057 Toulouse 01, France

来源：

FLOW TURBULENCE AND COMBUSTION | 2014年 / 92卷 / 04期

关键词：

Turbulent combustion; Large Eddy simulation; Soot modeling; Mixed reduced-tabulated chemistry; Radiative transfer; Coupling; LARGE-EDDY SIMULATION; HEAT-TRANSFER; TURBULENT COMBUSTION; FLAME-PROLONGATION; DIFFUSION FLAMES; PREMIXED FLAMES; GAS; ETHYLENE; MODEL; FLOW;

D O I：

10.1007/s10494-014-9536-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper proposes a method for modeling soot when performing Large Eddy Simulation of complex geometries. To obtain a good trade-off between CPU cost and accuracy, soot chemistry is included via a tabulated flamelet approach, combined to a turbulent combustion model for Large Eddy Simulation based on a simplified description of chemistry. A semi-empirical soot model is chosen and validated on laminar premixed and counterflow diffusion flames. A proposed procedure enables to calculate radiation with a Discrete Ordinates Method approach and optimized spectral models. The developed soot model is applied to a real configuration, being the combustion chamber of a helicopter engine. To evaluate the importance of radiative heat losses, two cases are studied, using either adiabatic conditions or accounting for radiative heat gains/loss.

引用

页码：947 / 970

页数：24

共 75 条

[11] Effects of mesh resolution on large eddy simulation of reacting flows in complex geometry combustors [J].