Large-eddy simulation of turbulent combustion using different combustion models

被引：17

作者：

Zhou, L. X. ^{[1
]}

Hu, L. Y. ^{[1
,2
]}

Wang, F. ^{[1
,3
]}

机构：

[1] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Power Engn, Shanghai 200400, Peoples R China

[3] Beihang Univ, Dept Thermal Engn, Beijing 100083, Peoples R China

来源：

FUEL | 2008年 / 87卷 / 13-14期

基金：

中国国家自然科学基金;

关键词：

large-eddy simulation; turbulent combustion; combustion models;

D O I：

10.1016/j.fuel.2008.04.025

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The second-order moment (SOM) combustion model proposed by the present authors is compared with eddy-break-up (EBU) and presumed probability density function (PDF) combustion models in large-eddy simulation of jet diffusion combustion, swirling diffusion combustion and premixed combustion behind a bluff body. The statistical results for time-averaged and RMS fluctuation temperatures are validated by experimental results. It is seen that the SOM model can always give good statistical results in LES of both non-premixed and premixed combustion, whereas the EBU and presumed PDF models cannot always do. The instantaneous results indicate that organized large vortex and thin flame surface structures are observed in jet diffusion combustion and bluff-body stabilized premixed combustion, whereas no organized vortex and thin flame surface structures are observed in swirling diffusion combustion. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：3123 / 3131

页数：9

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