| 二维埋入式进气道的数值分析 |
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| 引用本文： | 杨爱玲,郭荣伟.二维埋入式进气道的数值分析[J].航空学报,1999,20(5):450-454. |
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| 作者姓名： | 杨爱玲 郭荣伟 |
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| 作者单位： | 南京航空航天大学动力工程系 江苏南京 210016 |
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| 摘 要： | 采用并改进了适用于分离流动的 Ｊｏｈｎｓｏｎ Ｋｉｎｇ 紊流模型，结合 Ｌ ＵＳ Ｇ Ｓ近似隐式格式和基于 Ｍ Ｕ Ｓ Ｃ Ｌ非线性插值的 Ｒｏｅ 格式编写了雷诺平均的二维 Ｎ-Ｓ方程的求解程序。然后借助于该流场计算程序完成了二维埋入式进气道的数值研究，分析了几何设计参数对进气道性能的影响。
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| 关 键 词： | 埋入式进气道 数值分析 紊流模型 |
| 文章编号： | ：1000-6893(1999)05-0450-05 |
| 收稿时间： | 1998-06-25 |
| 修稿时间： | 1998-11-10 |
NUMERICAL SIMULATION OF THE FLOW OF TWO-DIMENSIONAL SUBMERGED AIR INTAKE |
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| YANG Ai-ling,GUO Rong-wei.NUMERICAL SIMULATION OF THE FLOW OF TWO-DIMENSIONAL SUBMERGED AIR INTAKE[J].Acta Aeronautica et Astronautica Sinica,1999,20(5):450-454. |
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| Authors: | YANG Ai-ling GUO Rong-wei |
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| Institution: | Department of Power Engineering, Nanjing University of Areonautics and Astronautics, Nanjing 210016, China |
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| Abstract: | Combining the LU SGS implicit scheme and Roe's approximate Riemann scheme based on the MUSCL interpolation, a code for 2 Dimensional compressible Navier Stokes Equations is developed. The Johnson King turbulence model is used to simulate the separated flows. Then the internal and external flow fields of three 2 Dimensional submerged air intakes are computed with the code, and the influence of design parameters on the performance of the intakes is analyzed. The large range of backflow appears in the submerged air intake, especially in the large offset, compact intake. The results also show that the separated range becomes smaller with the reduction of the ratio of the offset to the length of the intake. |
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| Keywords: | submerged air intake numerical analysis turbulence model |
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