LES Study on the Flashback of Swirling Annular Channel for Premixed CH4/Air Mixture

Wen Jie Zou; Yue Wang; Wen Jun Kong

doi:10.16146/j.cnki.rndlgc.2017.05.008

LES Study on the Flashback of Swirling Annular Channel for Premixed CH₄/Air Mixture

Wen Jie Zou
, Yue Wang^*
, Wen Jun Kong

^*此作品的通讯作者

CAS - Institute of Engineering Thermophysics

科研成果: 期刊稿件 › 文章 › 同行评审

1 引用（Scopus）

摘要

The characteristic of flashback induced by suddenly reducing the axial velocity in a swirling annular channel was studied by LES. The numerical method was validated by comparing the results of simulation and experiment. Based on the validation, two additional cases with different swirl number were presented and investigated for the impact of swirl number on flashback. The core flashback was captured in both cases. Furthermore, the CIVB (Combustion-Induced-Vortex-Breakdown) flashback was observed in the case with swirl number doubled.

源语言	英语
页（从-至）	44-49
页数	6
期刊	Reneng Dongli Gongcheng/Journal of Engineering for Thermal Energy and Power
卷	32
期	5
DOI	https://doi.org/10.16146/j.cnki.rndlgc.2017.05.008
出版状态	已出版 - 20 5月 2017
已对外发布	是

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title = "LES Study on the Flashback of Swirling Annular Channel for Premixed CH4/Air Mixture",

abstract = "The characteristic of flashback induced by suddenly reducing the axial velocity in a swirling annular channel was studied by LES. The numerical method was validated by comparing the results of simulation and experiment. Based on the validation, two additional cases with different swirl number were presented and investigated for the impact of swirl number on flashback. The core flashback was captured in both cases. Furthermore, the CIVB (Combustion-Induced-Vortex-Breakdown) flashback was observed in the case with swirl number doubled.",

keywords = "Flashback, LES, Strong swirling flow, Velocity sudden change",

author = "Zou, \{Wen Jie\} and Yue Wang and Kong, \{Wen Jun\}",

year = "2017",

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AU - Zou, Wen Jie

AU - Wang, Yue

AU - Kong, Wen Jun

PY - 2017/5/20

Y1 - 2017/5/20

N2 - The characteristic of flashback induced by suddenly reducing the axial velocity in a swirling annular channel was studied by LES. The numerical method was validated by comparing the results of simulation and experiment. Based on the validation, two additional cases with different swirl number were presented and investigated for the impact of swirl number on flashback. The core flashback was captured in both cases. Furthermore, the CIVB (Combustion-Induced-Vortex-Breakdown) flashback was observed in the case with swirl number doubled.

AB - The characteristic of flashback induced by suddenly reducing the axial velocity in a swirling annular channel was studied by LES. The numerical method was validated by comparing the results of simulation and experiment. Based on the validation, two additional cases with different swirl number were presented and investigated for the impact of swirl number on flashback. The core flashback was captured in both cases. Furthermore, the CIVB (Combustion-Induced-Vortex-Breakdown) flashback was observed in the case with swirl number doubled.

KW - Flashback

KW - LES

KW - Strong swirling flow

KW - Velocity sudden change

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DO - 10.16146/j.cnki.rndlgc.2017.05.008

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SN - 1001-2060

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JO - Reneng Dongli Gongcheng/Journal of Engineering for Thermal Energy and Power

JF - Reneng Dongli Gongcheng/Journal of Engineering for Thermal Energy and Power

IS - 5

ER -

LES Study on the Flashback of Swirling Annular Channel for Premixed CH4/Air Mixture

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LES Study on the Flashback of Swirling Annular Channel for Premixed CH₄/Air Mixture