| 超音速底部流动的大涡模拟研究 |
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| 引用本文： | 高瑞泽,阎超. 超音速底部流动的大涡模拟研究[J]. 航空计算技术, 2009, 39(3): 25-28 |
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| 作者姓名： | 高瑞泽 阎超 |
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| 作者单位： | 北京航空航天大学,航空科学与工程学院,北京,100083;北京航空航天大学,航空科学与工程学院,北京,100083 |
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| 摘 要： | 超音速底部流动是CFD的难点问题之一。采用基于可压缩流动的大涡模拟方法求解N-S方程,对超音速底部流动进行了模拟研究,分析了其流动结构。计算结果表明：得到的速度型、底面压力分布与实验值吻合,优于雷诺平均方法的结果。
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| 关 键 词： | 大涡模拟 可压缩流动 底部流动 |
Large Eddy Simulation for Supersonic Axisymmetric Base Flow |
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| GAO Rui-ze,YAN Chao. Large Eddy Simulation for Supersonic Axisymmetric Base Flow[J]. Aeronautical Computer Technique, 2009, 39(3): 25-28 |
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| Authors: | GAO Rui-ze YAN Chao |
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| Affiliation: | School of Aeronautic Science and Technology;Beijing University of Aeronautics and Astronautics;Beijing 100083;China |
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| Abstract: | Base flows are an important form of separation found commonly in supersonic flow fields.Complex flow structure,strong separation and high frequent unsteady phenomenon make it be a difficult mission for RANS method in CFD.Compressible Favre-filtered large-eddy simulation equations are applied to an axisymmetric base flow at supersonic conditions.The obtained base flow structure is analyzed in comparison with experimental data.The results show that predictions of velocity,pressure distribution,etc of base flo... |
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| Keywords: | large eddy simulation compressible flow base flow |
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