Large-Eddy Simulation of Swirling Pulverized-Coal Combustion

被引：0

作者：

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

Zhou, L. X. ^{[2
]}

Luo, Y. H. ^{[1
]}

Xu, C. S. ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China

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

来源：

CLEANER COMBUSTION AND SUSTAINABLE WORLD | 2012年

基金：

中国国家自然科学基金;

关键词：

large-eddy simulation; swirling gas-particle reacting flows; pulverized coal combustion; JET FLAME;

D O I：

暂无

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：

A Eulerian-Lagrangian large-eddy simulation (LES) with a Smagorinsky-Lilly sub-grid scale stress model, presumed-PDF fast chemistry and EBU gas combustion models, particle devolatilization and particle combustion models are used to study the turbulence and flame structures of swirling pulverized-coal combustion. The LES statistical results are validated by the measurement results. The instantaneous LES results show that the coherent structures for pulverized coal combustion is stronger than that for swirling gas combustion. The particles are concentrated in the periphery of the coherent structures. The flame is located at the high vorticity and high particle concentration zone.

引用

页码：42 / 45

页数：4

共 14 条

[1] THE INFLUENCE OF NEAR BURNER REGION AERODYNAMICS ON THE FORMATION AND EMISSION OF NITROGEN-OXIDES IN A PULVERIZED COAL-FIRED FURNACE [J].

ABBAS, T ;

COSTEN, P ;

LOCKWOOD, FC .

COMBUSTION AND FLAME, 1992, 91 (3-4) :346-363

[2]

[Anonymous], 1966, APPL EDDY VISCOSITY, DOI DOI 10.5065/D67H1GGQ

[3] Large eddy simulation of a solid-fuel jet flame [J].

Kurose, R ;

Makino, H .

COMBUSTION AND FLAME, 2003, 135 (1-2) :1-16

[4] Large-eddy simulation of realistic gas turbine combustors [J].

Moin, P ;

Apte, SV .

AIAA JOURNAL, 2006, 44 (04) :698-708

[5]

Sankran V., 2003, J TURBUL, V11, P1

[6]

Smagorinsky J., 1963, Am Meteorol Soc, V91, P99, DOI [10.1175/1520-0493(1963)091<0099:GCEWTP>2.3.CO

[7]

2, DOI 10.1175/1520-0493(1963)0912.3.CO

[8]

2, 10.1175/1520-0493(1963)091andlt

[9]

0099:GCEWTPandgt

[10]

2.3.CO

← 1 2 →