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Journal of Projectiles, Rockets, Missiles and Guidance >

2014 , Vol. 34 >Issue 6: 113 - 118

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2014.06.030

BALLISTIC AND AIRDYNAMICS

Investigation of Aerodynamic Characteristics of Small-caliber Subsonic Grenade with Different Nose Fuze Shape

  • WANG Hongchao ,
  • WEN Quan ,
  • LIU Zhiwang ,
  • WANG Yushi ,
  • ZHANG Shuming
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  • 1 School of Mechanical Engineering, NUST, Nanjing 210094, China
    2 Hunan Jianhua Precision Apparatus Co. Ltd, Hunan Yongzhou 425024, China

Received date: 2014-03-02

  Online published: 2025-05-30

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Abstract

In order to provide a reference for optimal grenade design, FLUENT simulation software was applied to study the effect of small-caliber subsonic warhead's fuze shape on aerodynamic characteristics of grenades, drag coefficient lift coefficient, pitching moment coefficients and center of pressure variation of three grenades' head shapes (singe cone, truncated combination and hemispherical) at different angles of attack, different Mach number were achieved. The results show that: angle of attack has no obvious effect on the drag coefficient lift coefficient. When Mach number is less than 0.7, drag coefficient of grenade with the hemispherical head shape is minimum, its lift coefficient is maximum; when Mach number is greater than 0.7, drag coefficient of grenade with truncated combination head shape is minimum, its lift coefficient is maximum.

Key words： fuze; system design; simulation; external flow field; aerodynamics analysis

Cite this article

WANG Hongchao , WEN Quan , LIU Zhiwang , WANG Yushi , ZHANG Shuming . Investigation of Aerodynamic Characteristics of Small-caliber Subsonic Grenade with Different Nose Fuze Shape[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2014 , 34(6) : 113 -118 . DOI: 10.15892/j.cnki.djzdxb.2014.06.030

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References

[1]
韩子鹏 弹箭外弹道学[M]. 北京 北京理工大学出版社 2008.
[2]
中国兵工学会引信专业委员会 美国军用手册:现役引信概览[M]. 西安 中国兵工学会引信专业委员会 2000.
[3]
《俄罗斯新兵器手册》编辑部 俄罗斯新兵器手册[M]. 北京 兵器工业出版社 1998.
[4]
秦豪, 马少杰. 基于FLUENT 的弹道修正弹制导状态气动仿真[J]. 四川兵工学报, 2010, 31(7): 30-32.
[5]
王晓兵, 李菁, 廖忠全, 等. 基于FLUENT 的弹丸外流场数值仿真[J]. 计算机辅助工程, 2010, 19(1): 92-94.
[6]
胡志鹏, 刘荣忠, 郭锐. 基于FLUENT 的双翼末敏气动特性研究[J]. 飞行力学, 2013, 31(1): 53-56.
[7]
吴志林, 陶家宾. 基于 FLUENT 的微型修正弹药气动特性仿真[J] 计算机仿真, 2013, 30(6): 20-23.
[8]
郑健, 周长省, 鞠玉涛, 等. Spalart-Allmaras 湍流模型在弧形翼超音速流场数值模拟中的应用[J]. 重庆工学院学报, 2008, 22(12): 34-39.
[9]
于勇. FLUENT 入门与进阶教程[M]. 北京 北京理工大学出版社 2008.
[10]
赵育善, 吴斌. 导弹引论[M]. 西安 西北工业大学出版社 2009.
[11]
浦发, 芮筱亭. 外弹道学[M].修订本. 北京 国防工业出版社 2008.
[12]
徐明友. 火箭外弹道学[M]. 北京 兵器工业出版社 1989.
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