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Large-eddy simulation of mixing and combustion in a premixed swirling combustor with synthesis gases

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Large-eddy simulation of mixing and combustion in a premixed swirling combustor with synthesis gases. / Zheng, Yunzhe; Zhu, Min; Mira Martinez, Daniel; Jiang, Xi.

In: Computers and Fluids, Vol. 88, 15.12.2013, p. 702-714.

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Zheng, Yunzhe ; Zhu, Min ; Mira Martinez, Daniel ; Jiang, Xi. / Large-eddy simulation of mixing and combustion in a premixed swirling combustor with synthesis gases. In: Computers and Fluids. 2013 ; Vol. 88. pp. 702-714.

Bibtex

@article{6df62940203c41668be85a91638e2a10,
title = "Large-eddy simulation of mixing and combustion in a premixed swirling combustor with synthesis gases",
abstract = "A lean-premixed swirling combustor with synthesis gases is studied in non-reacting and reacting cases using large-eddy simulation. Code validation and grid dependence test are performed to validate the models and mesh resolution. With the introduction of unmixedness and correlation coefficients in the non-reacting cases, the influence of Reynolds number on recirculation, vorticity breakdown and mixing is studied. In reacting cases, instant and time-averaged scalar fields are examined to study the flame dynamics for a varied fuel composition and operating conditions. The results reveal the effects of hydrogen concentration, Reynolds number, equivalence ratio and pressure on the combustion processes. Conclusions for syngas combustion operation from this work are expected to provide useful information for gas turbine combustor design.",
keywords = "LES, Syngas , Unmixedness, Vortex breakdown, Interchangeability",
author = "Yunzhe Zheng and Min Zhu and {Mira Martinez}, Daniel and Xi Jiang",
year = "2013",
month = dec
day = "15",
doi = "10.1016/j.compfluid.2013.04.003",
language = "English",
volume = "88",
pages = "702--714",
journal = "Computers and Fluids",
issn = "0045-7930",
publisher = "Elsevier Limited",

}

RIS

TY - JOUR

T1 - Large-eddy simulation of mixing and combustion in a premixed swirling combustor with synthesis gases

AU - Zheng, Yunzhe

AU - Zhu, Min

AU - Mira Martinez, Daniel

AU - Jiang, Xi

PY - 2013/12/15

Y1 - 2013/12/15

N2 - A lean-premixed swirling combustor with synthesis gases is studied in non-reacting and reacting cases using large-eddy simulation. Code validation and grid dependence test are performed to validate the models and mesh resolution. With the introduction of unmixedness and correlation coefficients in the non-reacting cases, the influence of Reynolds number on recirculation, vorticity breakdown and mixing is studied. In reacting cases, instant and time-averaged scalar fields are examined to study the flame dynamics for a varied fuel composition and operating conditions. The results reveal the effects of hydrogen concentration, Reynolds number, equivalence ratio and pressure on the combustion processes. Conclusions for syngas combustion operation from this work are expected to provide useful information for gas turbine combustor design.

AB - A lean-premixed swirling combustor with synthesis gases is studied in non-reacting and reacting cases using large-eddy simulation. Code validation and grid dependence test are performed to validate the models and mesh resolution. With the introduction of unmixedness and correlation coefficients in the non-reacting cases, the influence of Reynolds number on recirculation, vorticity breakdown and mixing is studied. In reacting cases, instant and time-averaged scalar fields are examined to study the flame dynamics for a varied fuel composition and operating conditions. The results reveal the effects of hydrogen concentration, Reynolds number, equivalence ratio and pressure on the combustion processes. Conclusions for syngas combustion operation from this work are expected to provide useful information for gas turbine combustor design.

KW - LES

KW - Syngas

KW - Unmixedness

KW - Vortex breakdown

KW - Interchangeability

U2 - 10.1016/j.compfluid.2013.04.003

DO - 10.1016/j.compfluid.2013.04.003

M3 - Journal article

VL - 88

SP - 702

EP - 714

JO - Computers and Fluids

JF - Computers and Fluids

SN - 0045-7930

ER -