| 二维非对称喷管数值模拟与验证 |
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| 引用本文： | 李念,张堃元,徐惊雷. 二维非对称喷管数值模拟与验证[J]. 航空动力学报, 2004, 19(6): 802-805 |
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| 作者姓名： | 李念 张堃元 徐惊雷 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,江苏,南京,210016;南京航空航天大学,能源与动力学院,江苏,南京,210016;南京航空航天大学,能源与动力学院,江苏,南京,210016 |
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| 摘 要： | 采用Fluent软件针对二维非对称喷管进行数值模拟,考察了其中几种常用湍流模型及网格密度对模拟精度的影响,并将计算结果与NASA公布的实验数据进行比较,找出了精度较高、求解快捷的模拟方案,结果表明FLUENT软件可以应用于带高超声速外流的非对称超声速喷管内外流场的数值计算。
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| 关 键 词： | 航空、航天推进系统 非对称大膨胀比喷管 高超声速 数值模拟 Fluent软件 |
| 文章编号： | 1000-8055(2004)06-0802-04 |
| 收稿时间： | 2003-10-31 |
| 修稿时间： | 2003-10-31 |
Simulation and Experiment Validation of a Two Dimensional Asymmetric Ramp Nozzle |
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| LI Nian,ZHANG Kun-yuan and XU Jing-lei. Simulation and Experiment Validation of a Two Dimensional Asymmetric Ramp Nozzle[J]. Journal of Aerospace Power, 2004, 19(6): 802-805 |
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| Authors: | LI Nian ZHANG Kun-yuan XU Jing-lei |
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| Affiliation: | College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing210016,China |
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| Abstract: | The CFD software FLUENT was used to simulate the flow in the 2D asymmetric ramp-nozzle.The effect of four widely used turbulent models and three kinds of grid density on the numerical results were discussed.All the numerical results are compared with the experimental data published by NASA and agree with each other very well.It shows that FLUENT software with medium grid density and RNG k-ε model can quickly yield accurate result,so it is very suitable for the internal and external flow simulation of a 2D asymmetric ramp nozzle with hypersonic free stream. |
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| Keywords: | aerospace propulsion system 2D asymmetric ramp-nozzle hypersonic numerical simulation FLUENT software |
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