Modelling of soot formation in laminar diffusion flames using a comprehensive CFD-PBE model with detailed gas-phase chemistry

被引：14

作者：

Akridis, Petros ^{[1
]}

Rigopoulos, Stelios ^{[1
]}

机构：

[1] Imperial Coll, Dept Mech Engn, London, England

来源：

COMBUSTION THEORY AND MODELLING | 2017年 / 21卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

population balance equation; soot formation; laminar diffusion flames; particle size distribution; CFD; AGGREGATE FORMATION; NONPREMIXED FLAMES; POPULATION BALANCE; PREMIXED FLAMES; GROWTH; TRANSPORT; OXIDATION; SCHEME;

D O I：

10.1080/13647830.2016.1213426

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A discretised population balance equation (PBE) is coupled with an in-house computational fluid dynamics (CFD) code in order to model soot formation in laminar diffusion flames. The unsteady Navier-Stokes, species and enthalpy transport equations and the spatially-distributed discretised PBE for the soot particles are solved in a coupled manner, together with comprehensive gas-phase chemistry and an optically thin radiation model, thus yielding the complete particle size distribution of the soot particles. Nucleation, surface growth and oxidation are incorporated into the PBE using an acetylene-based soot model. The potential of the proposed methodology is investigated by comparing with experimental results from the Santoro jet burner [Santoro, Semerjian and Dobbins, Soot particle measurements in diffusion flames, Combustion and Flame, Vol. 51 (1983), pp. 203-218; Santoro, Yeh, Horvath and Semerjian, The transport and growth of soot particles in laminar diffusion flames, Combustion Science and Technology, Vol. 53 (1987), pp. 89-115] for three laminar axisymmetric non-premixed ethylene flames: a non-smoking, an incipient smoking and a smoking flame. Overall, good agreement is observed between the numerical and the experimental results.

引用

页码：35 / 48

页数：14

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