| 膏体推进剂在热管道内流动的建模与仿真 |
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| 引用本文： | 张家仙,郑亚,鞠玉涛. 膏体推进剂在热管道内流动的建模与仿真[J]. 南京理工大学学报(自然科学版), 2009, 33(3) |
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| 作者姓名： | 张家仙 郑亚 鞠玉涛 |
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| 作者单位： | 1. 南京理工大学,机械工程学院,江苏,南京,210094
2. 西北工业大学,陕西,西安,710072 |
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| 摘 要： | 为研究膏体推进剂供给管道受热后对推进剂的热稳定性及流动性能的影响,针对膏体推进剂在热管道内的流动情况,结合不可压缩N-S方程及幂律本构关系进行建模与仿真,获得膏体推进剂在热管道内的流动特性,分析了其流动时的受热状况.仿真结果表明:膏体推进剂在热管道内的流速比在普通(绝热)管道快,并且管径和入口速度越小,流速增大越明显;近壁面膏体推进剂加热层厚度随着流速的增大而减小,随管径的增大而增大.
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| 关 键 词： | 推进剂 膏体推进剂 管道 流动 传热 仿真 |
Modeling and Simulation of Pasty Propellant Flow in Hot Pipe |
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| ZHANG Jia-xian,ZHENG Ya,JU Yu-tao. Modeling and Simulation of Pasty Propellant Flow in Hot Pipe[J]. Journal of Nanjing University of Science and Technology(Nature Science), 2009, 33(3) |
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| Authors: | ZHANG Jia-xian ZHENG Ya JU Yu-tao |
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| Affiliation: | 1.School of Mechanical Engineering;NUST;Nanjing 210094;China;2.Northwestern Polytechnical University;Xi'an 710072;China |
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| Abstract: | To research the influence of the transport pipe heated by the high temperature in the combustor on the propellant's thermal stability and flow properties,by combining incompressible N-S equation and power law constitute equation to model and simulate the pasty propellant flow in hot pipe,flow properties and heating conditions are obtained.Simulation results show that the flow velocity of pasty propellant in hot pipe is bigger than in normal(adiabatic) pipe.The less the caliber or the inlet velocity is,the m... |
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| Keywords: | propellants pasty propellants pipes flow heat transfer simulation |
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