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针对含硼推进剂固体火箭冲压发动机内单颗粒硼的着火过程展开了系统研究. 考虑硼颗粒周围气相流动以及硼颗粒与周围环境间的传热传质过程, 建立了考虑Stefan流作用的一维硼颗粒着火模型, 研究了硼颗粒实现着火和未能实现着火两种典型情形下硼颗粒及周围气相的参数变化规律, 对两种情形下Stefan流的变化规律及其成因展开了详细分析. 研究表明, 在硼颗粒实现着火的过程中, 液态B2O3的蒸发及硼的 氧化均能在硼颗粒的反应自加热作用下急剧加速, 硼颗粒表面附近的氧气和气相B2O3分布变化剧烈; 在未能实现着火的过程中, 液态B2O3的蒸发和氧气消耗的质量流率相对较小, 并逐渐趋于稳定, 硼颗粒表面附近的氧气和气相B2O3分布相对变化很小.在两种典型情形下, 硼颗粒外表面的Stefan流都会经历先由周围空间流向颗粒表面, 而后变为由颗粒表面流向周围空间的过程.A one-dimensional model about the ignition process of boron particle in boron-based propellant ducted rocket is systemically investigated. The gas flow around the boron particle, the heat transfer and the mass transfer between the boron particle and the surrounding are included in the model. And the effects of Stefan flow are also proposed. The changing regularities of important parameters in the two typical cases, viz., the successful ignition case and the degenerate ignition case are studied in detail. And their reasons are analyzed. The result shows that both the evaporation of the liquid boric oxide layer and the oxidation of the boron are remarkably accelerated as the result of the self-heating exothermic oxidation in the successful ignition case, and the mass fraction profiles of the oxygen gas and those of the B2O3 gas also dramatically change in that case. However, both the mass flux of the evaporation of the liquid boric oxide layer and that of the consumption of the oxygen gas are relatively small, and both of them tend to be nearly constant in the degenerate ignition case. The mass fraction profile of the oxygen gas and that of the B2O3 gas change little in the degenerate ignition case. In the two typical cases, Stefan flow on the boron particle surface undergoes the change of flow direction, viz., Stefan flow initially comes from the surrounding and then it flows from the particle surface to the surrounding.
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Keywords:
- ducted rocket /
- boron particle /
- ignition process /
- Stefan flow
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[2] Abbott S W, Smoot L D, Schadow K 1974 AIAA J. 12 275
[3] King M K 1974 Combust. Sci. Tech. 8 255
[4] Kazaoka Y, Takahashi K, Tanabe M, Kuwahare T 2011 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit San Diego, United States, July 31-August 3, 2011 p5867
[5] Wang X W, Cai G B, Jin P 2011 Chin. Phys. B 20 104701
[6] Wang X W, Cai G B, Gao Y S 2011 Chin. Phys. B 20 064701
[7] Glassma I, Williams F A, Antaki P 1985 12th Symposium (International) on Combustion Michigan, United States, August 12-17, 1985 p2057
[8] King M K 1982 19th JANNAF Combust. Meet. Washington, United States, October 4-7, 1982 p27
[9] Zhou W, Yetter R A, Dryer F L 1999 Combust. Flame 117 227
[10] King M K 1982 19th JANNAF Combust. Meet., Washington, United States, October 4-7, 1982 p43
[11] Makino A, Law C K 1988 Combust. Sci. Tech. 61 155
[12] Hussmann B, Pfitzner M 2010 Combust. Flame 157 803
[13] Wu W E, Pei M J, Guo E L, Zhao P, Mao G W 2008 Chinese Journal of Explosives and Propellants 31 79 (in Chinese) [吴婉娥, 裴明敬, 郭耳铃, 赵鹏, 毛根旺 2008 火炸药学报 31 79]
[14] Huo D X, Chen L Q, Liu N S, Ye D Y 2004 Journal of Solid Rocket Technology 27 272 (in Chinese) [霍东兴, 陈林泉, 刘霓生, 叶定友 2004 固体火箭技术 27 272]
[15] Hu J X, Xia Z X, Luo Z B, Miao W B, Guo J, Zhao J M 2004 Chinese Journal of Energetic Materials 12 342 (in Chinese) [胡建新, 夏智勋, 罗振兵, 缪万波, 郭健, 赵建民 2004 含能材料 12 342]
[16] Yang T, Fang D Y, Tang Q G 2008 Combustion Principle of Rocket Engine (Changsha: National University of Defense Technology Press) pp156-217 (in Chinese) [杨涛, 方丁酉, 唐乾刚 2008 火箭发动机燃烧原理(长沙: 国防科技大学出版社) 第156-217页]
[17] Li S C 1990 Ph. D. Dissertation (Princeton: Princeton University)
[18] Yeh C L 1995 Ph. D. Dissertation (Pennsylvania: Pennsylvania State University)
[19] Macek A, Semple J M 1969 Combust. Sci. Tech. 1 181
[20] Fang C B, Xia Z X, Hu J X, Wang D Q, You J 2012 Acta Aeronautica et Astronautica Sinica 33 2153 (in Chinese) [方传波, 夏智勋, 胡建新, 王德全, 游进 2012 航空学报 33 2153]
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[1] Fry R S 2004 J. Propul. Power 20 27
[2] Abbott S W, Smoot L D, Schadow K 1974 AIAA J. 12 275
[3] King M K 1974 Combust. Sci. Tech. 8 255
[4] Kazaoka Y, Takahashi K, Tanabe M, Kuwahare T 2011 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit San Diego, United States, July 31-August 3, 2011 p5867
[5] Wang X W, Cai G B, Jin P 2011 Chin. Phys. B 20 104701
[6] Wang X W, Cai G B, Gao Y S 2011 Chin. Phys. B 20 064701
[7] Glassma I, Williams F A, Antaki P 1985 12th Symposium (International) on Combustion Michigan, United States, August 12-17, 1985 p2057
[8] King M K 1982 19th JANNAF Combust. Meet. Washington, United States, October 4-7, 1982 p27
[9] Zhou W, Yetter R A, Dryer F L 1999 Combust. Flame 117 227
[10] King M K 1982 19th JANNAF Combust. Meet., Washington, United States, October 4-7, 1982 p43
[11] Makino A, Law C K 1988 Combust. Sci. Tech. 61 155
[12] Hussmann B, Pfitzner M 2010 Combust. Flame 157 803
[13] Wu W E, Pei M J, Guo E L, Zhao P, Mao G W 2008 Chinese Journal of Explosives and Propellants 31 79 (in Chinese) [吴婉娥, 裴明敬, 郭耳铃, 赵鹏, 毛根旺 2008 火炸药学报 31 79]
[14] Huo D X, Chen L Q, Liu N S, Ye D Y 2004 Journal of Solid Rocket Technology 27 272 (in Chinese) [霍东兴, 陈林泉, 刘霓生, 叶定友 2004 固体火箭技术 27 272]
[15] Hu J X, Xia Z X, Luo Z B, Miao W B, Guo J, Zhao J M 2004 Chinese Journal of Energetic Materials 12 342 (in Chinese) [胡建新, 夏智勋, 罗振兵, 缪万波, 郭健, 赵建民 2004 含能材料 12 342]
[16] Yang T, Fang D Y, Tang Q G 2008 Combustion Principle of Rocket Engine (Changsha: National University of Defense Technology Press) pp156-217 (in Chinese) [杨涛, 方丁酉, 唐乾刚 2008 火箭发动机燃烧原理(长沙: 国防科技大学出版社) 第156-217页]
[17] Li S C 1990 Ph. D. Dissertation (Princeton: Princeton University)
[18] Yeh C L 1995 Ph. D. Dissertation (Pennsylvania: Pennsylvania State University)
[19] Macek A, Semple J M 1969 Combust. Sci. Tech. 1 181
[20] Fang C B, Xia Z X, Hu J X, Wang D Q, You J 2012 Acta Aeronautica et Astronautica Sinica 33 2153 (in Chinese) [方传波, 夏智勋, 胡建新, 王德全, 游进 2012 航空学报 33 2153]
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