| 膛口装置三维流场的数值模拟及制退效率计算 |
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| 引用本文： | 张焕好,陈志华,姜孝海,韩珺礼.膛口装置三维流场的数值模拟及制退效率计算[J].兵工学报,2011,32(5):513-519. |
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| 作者姓名： | 张焕好 陈志华 姜孝海 韩珺礼 |
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| 作者单位： | （南京理工大学 瞬态物理国家重点实验室， 江苏 南京 210094） |
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| 基金项目： | 国防科技重点实验室基金项目(9140C3004080903、9140C300205110C30); 国家自然科学基金青年科学基金项目(10902052); 教育部博士点基金新教师基金项目(20070288069) |
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| 摘 要： | 基于三维非定常Euler方程,结合高精度Roe格式以及结构化动网格技术,对弹丸飞离开腔式膛口制退器过程中膛口流场的发展过程进行了数值模拟.根据数值计算结果,讨论了制退器内流场复杂三维瞬态效应的主要特征,与膛口流场的试验阴影照片相吻;根据数值计算结果对开腔式制退器的制退效率进行了计算,其结果与相关试验计算结果相符.文中方...
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| 关 键 词： | 流体力学 膛口流场 数值模拟 膛口制退器 制退效率 |
Numerical Simulation of the 3D Flow Fields of a Muzzle Brake and Its Efficiency Calculation |
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| ZHANG Huan-hao,CHEN Zhi-hua,JIANG Xiao-hai,HAN Jun-li.Numerical Simulation of the 3D Flow Fields of a Muzzle Brake and Its Efficiency Calculation[J].Acta Armamentarii,2011,32(5):513-519. |
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| Authors: | ZHANG Huan-hao CHEN Zhi-hua JIANG Xiao-hai HAN Jun-li |
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| Affiliation: | (National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China) |
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| Abstract: | The process of projectile flying away from a three-dimensional muzzle brake was numerically simulated using the three-dimensional unsteady Euler equations,the high resolution Roe scheme and the structured dynamic mesh techniques.Based on the calculated results,the main characteristics of the complicated three-dimensional transient effect of muzzle brake were discussed in detail,and the numerical calculations are in good agreement with corresponding previous experimental shadowgraphs in our group.Moreover,th... |
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| Keywords: | fluid mechanics muzzle flow field numerical simulation muzzle brake muzzle brake efficiency |
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