| 非平衡流解耦方法及其计算激波诱导燃烧的应用验证 |
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| 引用本文： | 孙明波,梁剑寒,王振国.非平衡流解耦方法及其计算激波诱导燃烧的应用验证[J].航空动力学报,2008,23(11):2055-2061. |
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| 作者姓名： | 孙明波 梁剑寒 王振国 |
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| 作者单位： | 国防科技大学 航天与材料工程学院, 长沙 410073 |
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| 摘 要： | 介绍并发展了一种改进的化学非平衡流动解耦方法.将流动控制方程与化学反应生成源项解耦处理,组分对流项的矢通量分裂基于流动方程密度对流项的分裂形式给出.对流项采用五阶WENO格式求解,化学反应源项的刚性采用简化的隐式方法进行处理.将该方法应用于预混H2/O2和H2/Air激波诱导燃烧计算,得到的定常及非定常燃烧过程与实验观测相符,振荡频率与实验测量较吻合,结果表明该方法应用于多组分多步反应流计算是可行的.
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| 关 键 词： | 激波诱导燃烧 非平衡流 解耦方法 WENO格式 |
| 收稿时间： | 11/1/2007 3:34:31 PM |
| 修稿时间： | 2008/5/15 0:00:00 |
Validation of an uncoupled solver of non-equilibrium flow for shock-induced combustion |
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| SUN Ming-bo,LIANG Jian-han and WANG Zhen-guo.Validation of an uncoupled solver of non-equilibrium flow for shock-induced combustion[J].Journal of Aerospace Power,2008,23(11):2055-2061. |
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| Authors: | SUN Ming-bo LIANG Jian-han and WANG Zhen-guo |
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| Institution: | College of Aerospace and Materials Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | An improved uncoupled solver of non-equilibrium flow was introduced and developed in this study.The splitting of convective species flux was uncoupled from the N-S equations and based on the splitting result of the convective density flux.Inviscid flux was calculated with fifth-order weighted essentially non-oscillatory scheme.Simplified implicit formulation was adopted to deal with the stiffness generated by the chemical reacting source term of every separate species equation.Shock-induced combustion pheno... |
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| Keywords: | shock-induced combustion non-equilibrium flow uncoupled solver WENO(weighted essentially non-oscillatory) scheme |
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