| 跨声速母弹空腔流的数值模拟 |
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| 引用本文： | 夏刚,王承尧,杨哓辉.跨声速母弹空腔流的数值模拟[J].国防科技大学学报,1999,21(6):32-36. |
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| 作者姓名： | 夏刚 王承尧 杨哓辉 |
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| 作者单位： | 国防科技大学航天技术系!长沙410073(夏刚，王承尧)，国防科技大学并行与分布处理重点实验室!长沙410073(杨哓辉) |
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| 摘 要： | 将ＳＬＩＰ格式和ＬＵ－ＳＳＯＲ隐式迭代方法结合，数值模拟了尖头母弹在开舱前后的跨声速定常流场。采用修正的Ｂ－Ｌ湍流模型，用轴对称Ｎ－Ｓ方程求解零攻角时母弹在Ｍａｃｈ数０．９４～０．９８ 的临界气动特性和空腔流特性。开舱前母弹计算结果与实验以及Ｓａｈｕ 的结果能够很好吻合， 开舱后空腔流的计算结果也给出了合理的理论分析。
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| 关 键 词： | 临界气动特性 空腔流 母弹 |
| 收稿时间： | 1999/2/10 0:00:00 |
Numerical Computations of Trans-sonic Dispenser Cavity Flow |
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| Xia Gang,Wang Chengyao and Yang Xiaohui.Numerical Computations of Trans-sonic Dispenser Cavity Flow[J].Journal of National University of Defense Technology,1999,21(6):32-36. |
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| Authors: | Xia Gang Wang Chengyao and Yang Xiaohui |
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| Institution: | 1.Department of Aerospace Technology, NUDT, Changsha, 410073;1.Department of Aerospace Technology, NUDT, Changsha, 410073;2.National Laboratory for Parallel and Distributed Processing, NUDT, Changsha, 410073 |
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| Abstract: | The combination of SLIP scheme and LU SSOR method is used to predict the steady state aerodynamics of trans sonic ogive dispenser at Mach number 0.94 to 0.98; and the modified B L turbulence model is applied in solving axisymmetric Navier Stokes equation. Computed surface pressures of dispenser without cave have been compared with experiments as well as Sahu's numerical results and are found to be in good agreement; The results of cavity flow are also found to be reasonable. |
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| Keywords: | Critical Aerodynamics Cavity flow Dispenser |
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