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兵工学报 ›› 2022, Vol. 43 ›› Issue (10): 2609-2620.doi: 10.12382/bgxb.2021.0524

• 论文 • 上一篇    

基于二氧化碳喷射的导弹热发射新型排导方案设计

杨莹1, 姜毅1, 李玉龙2, 牛钰森1, 贾启明1   

  1. (1.北京理工大学 宇航学院, 北京 100081; 2.96901部队, 北京 100094)
  • 上线日期:2022-05-19
  • 通讯作者: 姜毅(1965—),男,教授,博士生导师 E-mail:jy2818@163.com
  • 作者简介:杨莹(2000—), 女, 硕士研究生。 E-mail: 1824156795@qq.com
  • 基金资助:
    国家部委基础研究项目(JCKY2019204C029)

Design of a New Scheme for Gas Conduction of Thermal Missile Launching Based on Carbon Dioxide Ejection

YANG Ying1, JIANG Yi1, LI Yulong2, NIU Yusen1, JIA Qiming1   

  1. (1.School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;2.Unit 96901 of PLA, Beijing 100094, China)
  • Online:2022-05-19

摘要: 针对导流器排导方式在车载导弹热发射过程中具有的烧蚀和架设撤收问题,提出一种利用二氧化碳喷射冲击燃气射流从而降低发射车与导弹表面温度的新型排导方案。以计算流体力学为主要的研究方法,建立三维定常计算模型,分析燃气射流与二氧化碳射流冲击流场的特性,计算并得出:随着下排管道伸入流场长度增加,发射车壁及弹体的温度先降低再升高;随着上排管道与发射车壁夹角减小,发射车壁及弹体的温度逐渐降低;随着上排管道出口到下排管道高度减小,发射车壁及弹体的温度逐渐降低。该方案在喷管出口到地面距离改变后的其他工况中仍有意义,可以为车载导弹热发射降温排导提供可行的全新设计思路。

关键词: 导弹热发射, 燃气射流, 二氧化碳喷射, 排导系统

Abstract: To deal with the problems of ablation, erection and retraction when using the deflector for exhaust conduction during thermal launching process of vehicular missiles, a new exhaust conduction scheme where carbon dioxide is ejected to impact gas jet so as to lower the temperatures of the launch vehicle and the missile is proposed. Taking the computational fluid dynamics(CFD) as the main research method, a three-dimensional steady model is established, and the characteristics of the cross flow field of gas jet and carbon dioxide are analyzed. The conclusions are drawn as follows: the temperatures of the launch vehicle and the missile decrease and then increase with the increase of the length of lower pipes; their temperatures decrease as the angle between the upper pipes and the launch vehicle wall decreases; the temperatures decrease with the decreasing height between the upper pipe orifices and the lower pipes. As the scheme remains meaningful when the distance between the nozzle exit and the ground is changed, this study provides a feasible new idea to design the exhaust conduction system for the thermal launching of vehicular missiles.

Key words: thermallaunchingofmissiles, gasjet, carbondioxideejection, exhaustconduction

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