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周一卉

Associate Professor
Supervisor of Master's Candidates


Gender:Female
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Chemical Engineering
Discipline:Safety Science and Engineering. Chemical Process Equipment
Business Address:Room H403,West Dist.,DUT
Contact Information:13500780440
E-Mail:zflower@dlut.edu.cn
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Current position: Home >> Scientific Research >> Paper Publications

密闭长管内甲烷-空气爆炸火焰传播数值模拟

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Indexed by:期刊论文

Date of Publication:2012-01-15

Journal:煤炭学报

Included Journals:Scopus、EI、PKU、ISTIC、CSCD

Volume:37

Issue:1

Page Number:127-131

ISSN No.:0253-9993

Key Words:大L/D密闭容器;甲烷-空气爆炸;计算流体力学

Abstract:采用LES湍流模型与预混燃烧模型对直径D=104 mm,长度L=2 400 mm的圆柱形容器内甲烷-空气预混爆炸进行了数值模拟,模拟最大爆炸压力与实验结果吻合。结果表明,混合气体被引燃后,火焰速度快速增加,接下来火焰速度突然下降;火焰传播过程中出现郁金香火焰,它的形成与中心区域逆流和容器壁的相互作用有关;在郁金香型火焰面后出现涡团,该涡团对层流燃烧转变为湍流燃烧起到重要作用。研究内容揭示了密闭长管内气体爆炸火焰传播规律。