| 发射药颗粒床中对流燃烧的实验研究 |
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| 引用本文： | 杨涛,金志明.发射药颗粒床中对流燃烧的实验研究[J].航空动力学报,1994,9(4):383-386,443. |
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| 作者姓名： | 杨涛 金志明 |
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| 作者单位： | 1.国防科学技术大学 |
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| 摘 要： | 设计了耐压值为1000MPa的半密闭爆发器, 研究了单基发射药颗粒床中的点、传火过程和压力波动现象, 考察了实验参数(推进剂特性、空隙率、剪切片厚度等)对多孔床中对流燃烧特性的影响。实验观察到一维压力波的传播与反射；火焰传播过程中药床存在动态压缩现象, 这是形成压力波的主要因素；在低的装填密度下, 药床中未形成一维燃烧波。
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| 关 键 词： | 推进剂燃烧 压力波 内弹道实验 燃烧转爆轰 |
| 收稿时间： | 1993/11/1 0:00:00 |
| 修稿时间： | 1/1/1994 12:00:00 AM |
EXPERIMENTAL INVESTIGATION ON CONVECTIVE BURNING IN A BED OF GRANULAR PROPELLANT BED |
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| Yang Tao and Jin Zhiming.EXPERIMENTAL INVESTIGATION ON CONVECTIVE BURNING IN A BED OF GRANULAR PROPELLANT BED[J].Journal of Aerospace Power,1994,9(4):383-386,443. |
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| Authors: | Yang Tao and Jin Zhiming |
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| Institution: | 1.1th Dept.,National University of Defense Technology,Changsha 4100782.Nanjing University of Scienca and Technology,Nanjing 210016 |
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| Abstract: | A semi closed bomb with 100MPa pressure limits was designed to investigate the ignition transient,flame spreading,and pressure wave propagation in a packed bed of granular propellant charge.The influences of parameters such as propellant properties,porosity,and blow out diaphragm thickness on the convective burning characteristics were examined.The 1 D pressure wave propagation was observed in the experiment.The dynamic impaction of the bed exists during the flame spreading process,which is a main factor to cause the pressure wave.The 1 D combustion wave can not be formed in the bed with low loading density. |
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| Keywords: | Propellant combustion Pressure waves Internal ballistic tests Combustion stability |
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