带有中心点传火管的燃气发生器两相流数值模拟

doi:10.3969/j.issn.1000-1093.2013.09.002

兵工学报 ›› 2013, Vol. 34 ›› Issue (9): 1065-1071.doi: 10.3969/j.issn.1000-1093.2013.09.002

带有中心点传火管的燃气发生器两相流数值模拟

王珊珊, 王浩, 黄明, 张博孜

南京理工大学能源与动力工程学院, 江苏南京210094

收稿日期:2013-03-26 修回日期:2013-03-26 上线日期:2013-11-11
作者简介:王珊珊(1985—),女,博士研究生。

Mathematic Simulation of Two-phase Flow of GasGenerator with Central Igniter Tube

WANG Shan-shan, WANG Hao, HUANG Ming, ZHANG Bo-zi

School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received:2013-03-26 Revised:2013-03-26 Online:2013-11-11

摘要/Abstract

摘要：

建立带有中心点传火管的燃气发生器的两相流数学模型。针对中心点传火管的点传火过程采用了一维两相流数学模型,管式燃气发生器的能量释放过程建立了二维两相流数学模型,通过气固交换建立了二者的耦合作用,并采用Mac Cormack 预估校正二步显格式编制了内弹道计算软件,进行了仿真计算,仿真计算结果与试验结果符合良好,验证了模型的正确性,为管式燃气发生器的结构设计及优化提供了理论基础;同时根据仿真结果对管式燃气发生器的能量释放过程进行了分析,结果表明均匀一致的点火条件是管式燃气发生器平稳释放能量的前提,点火能量的均匀释放才能保证燃气发生器内火药燃烧过程可靠,能量释放过程可控。

关键词: 兵器科学与技术, 燃气发生器, 两相流, 数值模拟

Abstract:

The two-phase flow mathematic models are developed for gas generator with central igniter tube. The one-dimensional two-phase model is used for the ignition of central igniter tube, and the two-dimensional two-phase model is used for the energy release of tubular gas generator. The coupling function of two tubes is established through exchange between gas and solid. The interior ballistic simulation software is programmed by Mac Cormack two-step scheme and is used to calculate the gas generator. The calculated results well accord with the test results, which proves that the model is right and provides important theory foundation to structure design and optimization on gas generator with central igniter tube.Meanwhile, the energy releasing course is analyzed based on the simulation results. The result shows that the uniform ignition condition is the precondition of gas generator releasing energy steadily. The ignition energy released uniformly could ensure the reliable burning of powders in gas generator and the release of controlled energy.

Key words: ordnance science and technology, gas generator, two-phase flow, numerical simulation

中图分类号:

TJ32

王珊珊, 王浩, 黄明, 张博孜. 带有中心点传火管的燃气发生器两相流数值模拟[J]. 兵工学报, 2013, 34(9): 1065-1071.

WANG Shan-shan, WANG Hao, HUANG Ming, ZHANG Bo-zi. Mathematic Simulation of Two-phase Flow of GasGenerator with Central Igniter Tube[J]. Acta Armamentarii, 2013, 34(9): 1065-1071.

参考文献

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带有中心点传火管的燃气发生器两相流数值模拟

Mathematic Simulation of Two-phase Flow of GasGenerator with Central Igniter Tube

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