[1]张 俊,刘荣忠,郭 锐,等.飞行弹丸表面温度的两种数值计算方法[J].南京理工大学学报(自然科学版),2013,37(04):585.
 Zhang Jun,Liu Rongzhong,Guo Rui,et al.Two numerical methods to calculate surface temperature of flying projectile[J].Journal of Nanjing University of Science and Technology,2013,37(04):585.
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飞行弹丸表面温度的两种数值计算方法
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
37卷
期数:
2013年04期
页码:
585
栏目:
出版日期:
2013-08-31

文章信息/Info

Title:
Two numerical methods to calculate surface temperature of flying projectile
作者:
张 俊刘荣忠郭 锐邦志辉陈 亮
南京理工大学 机械工程学院,江苏 南京 210094
Author(s):
Zhang JunLiu RongzhongGuo RuiBang ZhihuiChen Liang
School of Mechanical Engineering,NUST,Nanjing 210094,China
关键词:
弹丸 数值计算 温度分布 红外辐射特性
Keywords:
projectile numerical calculation temperature distribution infrared radiation characteristic
分类号:
TJ410
文献标志码:
A
摘要:
为了预测弹丸在飞行过程的红外辐射特性,建立了飞行弹丸在气动热、内热源及太阳热辐射综合效应下的表面温度场模型。采用两种数值计算方法求解其表面温度特征,其中:运用Gauss-Seidel法获得了不同速度下的瞬态温度分布; 运用Runge-Kutta法计算并分析了弹体壁厚、太阳热辐射以及内热源的热传导对其表面动态温度场的影响规律。结果表明:瞬态温度梯度随速度增加而非线性增加; 壁厚越薄,越靠近弹头部,峰值温度和温度变化率越大; 内热源的考虑方法对其表面动态温度场有较大影响,而太阳热辐射的影响较小。
Abstract:
To predict the infrared radiation characteristics of the projectile during flight,the temperature field model of flying projectile is established under the comprehensive effect of aerodynamic heating,internal heat source and the solar radiation.Two numerical methods are used to solve the surface temperature property.The Gauss-Seidel method is used to solve the transient temperature distribution under the different velocities.The Runge-Kutta method is used to calculate and analyze the surface dynamic temperature field affected by the wall thickness of the projectile body, internal heat source and solar radiation.The results show that the transient temperature gradient does not change with its velocity linearly.The thinner the wall thickness is,and the closer to the forehead,the higher the peak temperature and the rate are.The considering method of the heat source has great effect on its surface dynamic temperature field,but the impact of the solar radiation is less.

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备注/Memo

备注/Memo:
收稿日期:2012-03-01 修回日期:2012-07-08
基金项目:江苏省研究生培养创新计划项目(CXZZ12-0218)
作者简介:张俊(1983-),男,博士生,主要研究方向:空中高速飞行器表面温度场与红外辐射特性,E-mail:15250980370@139.com; 通讯作者:刘荣忠(1955-),男,教授,博士生导师,主要研究方向:末敏弹的总体相关技术,E-mail:liurongz116@mail.njust.edu.cn。
更新日期/Last Update: 2013-08-31