| 可燃颗粒悬浮流中的正激波 |
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| 引用本文： | 范宝春.可燃颗粒悬浮流中的正激波[J].爆炸与冲击,1990,10(3):257-265. |
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| 作者姓名： | 范宝春 |
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| 作者单位： | 华东工学院化工学院 |
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| 摘 要： | 本文讨论了激波后可燃颗粒点火、燃烧的机制和波后流场的松弛结构,结果表明,点火阶段颗粒外层浓度梯度极大,燃烧速率由非均相化学反应速率决定,而在燃烧阶段,外层的浓度梯度极大,燃烧速率由气体的扩散速率所决定。在考虑管壁效应时,对守恒方程中的能量耗散项作了说明。
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| 关 键 词： | 激波 可燃 颗粒 悬浮流 粉尘 爆炸 |
A NORMAL SHOCK WAVE PROPAGATING IN A COMBUSTIBLE PARTICLE SUSPENDED GAS |
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| Fan Baochun.A NORMAL SHOCK WAVE PROPAGATING IN A COMBUSTIBLE PARTICLE SUSPENDED GAS[J].Explosion and Shock Waves,1990,10(3):257-265. |
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| Authors: | Fan Baochun |
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| Institution: | College of Chemical Engineering East China Institute of Technology |
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| Abstract: | A model for heterogeneous combustion of p6rous combustible particles behinb a shock wave has been presented. The induction and reaction zones are distinguished by the mechanisms governing the rate of heterogeneous reaction, which occur on the external particle surface as well as on the surface of pores within particles, and is characterized by the temperature and concentration of the shell of particles respectively.The presence of the "energy dissipation" term in conservation equations in shock fixed coordinates is demonstrated by applying a Galilean transformation. |
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| Keywords: | two-phase flow heterogeneous combustion shock wave |
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