| 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.[点击复制] |
| Xia Gang,Wang Chengyao,Yang Xiaohui.Numerical Computations of Trans-sonic Dispenser Cavity Flow[J].Journal of National University of Defense Technology,1999,21(6):32-36[点击复制] |
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| 跨声速母弹空腔流的数值模拟 |
| 夏刚1, 王承尧1, 杨哓辉2 |
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(1.国防科技大学 航天技术系 湖南 长沙 410073;2.国防科技大学 并行与分布处理重点实验室 湖南 长沙 410073)
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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。 |
| 关键词: 临界气动特性, 空腔流, 母弹 |
| DOI： |
| 投稿日期：1999-02-10 |
| 基金项目: |
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| Numerical Computations of Trans-sonic Dispenser Cavity Flow |
| Xia Gang1, Wang Chengyao1, Yang Xiaohui2 |
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(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. |
| Keywords: Critical Aerodynamics, Cavity flow, Dispenser |
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