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    刘宏升

    • 教授     博士生导师   硕士生导师
    • 主要任职:能源与动力学院副院长
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:能源与动力学院
    • 学科:工程热物理
    • 办公地点:能源与动力学院918房间
    • 联系方式:电话:0411-84706902 Email:lhsh@dlut.edu.cn
    • 电子邮箱:lhsh@dlut.edu.cn

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    A numerical investigation on characteristics of turbulent premixed flame in porous media

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    论文类型:会议论文

    发表时间:2014-05-25

    收录刊物:EI、CPCI-S

    卷号:66

    页面范围:265-268

    关键字:turbulent combustion; porous media; flame thickness; Damkohler number; EDC model

    摘要:A numerical study on the turbulent combustion in porous media is conducted based on 2D staggered cylinders using the eddy dissipation concept model (EDC) with emphasis on characteristics of the turbulent premixed flame. The results show that as the velocity increases, the sheet of laminar flame is stretched and distorted gradually. A burned island forms at the recirculating zone due to the entrainment. Based on the parameter study, it is find that turbulent kinetic energy gradually decay after the reaction taking place. The pseudo thermal flame thickness is less than the length scale of a representative elementary volume. The Damkohler number at quasi-steady state is in the order of 10, indicating that the flame is in the flamelet regime. (C) 2015 The Authors. Published by Elsevier Ltd.