| 水下超声速细长锥型射弹超空泡形态的计算方法 |
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| 引用本文： | 张志宏,孟庆昌,顾建农,金永刚.水下超声速细长锥型射弹超空泡形态的计算方法[J].爆炸与冲击,2011,31(1):49-54. |
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| 作者姓名： | 张志宏 孟庆昌 顾建农 金永刚 |
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| 作者单位： | 1.海军工程大学力学系,湖北武汉430033 |
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| 摘 要： | 采用理想可压缩流体无旋定常流动以及超空泡尾部Riabushinsky闭合方式假定,基于细长体理论和匹配渐近展开法,建立了描述水下超声速条件下细长锥型射弹超空泡流动的积分微分方程.求解得到了考虑压缩性影响的超空泡形态二阶近似解,改进了超空泡形态的计算精度.分析了超声速射弹高速冲击条件下流体压缩性对超空泡形态的影响.流体压...
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| 关 键 词： | 流体力学 压缩性 匹配渐近展开法 超空泡 超声速 细长体理论 射弹 |
A calculation method for supercavity profile about a slender cone-shaped projectile traveling in water at supersonic speed |
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| ZHANG Zhi-hong,MENG Qing-chang,GU Jian-nong,JIN Yong-gang.A calculation method for supercavity profile about a slender cone-shaped projectile traveling in water at supersonic speed[J].Explosion and Shock Waves,2011,31(1):49-54. |
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| Authors: | ZHANG Zhi-hong MENG Qing-chang GU Jian-nong JIN Yong-gang |
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| Institution: | 1.Departmentof Mechanics,NavalUniversityofEngineering,Wuhan430033,Hubei,China2.Departmentof Mechanics,NavalUniversityofEngineering,Wuhan430033,Hubei,China |
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| Abstract: | By adopting the irrotational and steady motion of the ideal compressible fluid and the supercavity with the Riabushinsky scheme of closure,an integro-differential equation was derived for the supercavitating flow around a slender cone-shaped projectile traveling in water at supersonic speed by using the slender-body theory and the matched-asymptotic-expansions method.The second-order approximation solutions for the supercavity profiles considering the compressibility effect were obtained,and the calculation... |
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| Keywords: | fluid mechanics compressibility matched asymptotic expansions method supercavity supersonic speed slender body theory projectile |
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