| 三维不可压缩层流、转捩、湍流边界层的数值计算 |
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| 引用本文： | 严家祥,余斌.三维不可压缩层流、转捩、湍流边界层的数值计算[J].空气动力学学报,1991(2). |
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| 作者姓名： | 严家祥 余斌 |
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| 作者单位： | 西北工业大学
(严家祥)，西北工业大学(余斌) |
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| 摘 要： | 本文提出了一种计算三维不可压缩边界层的数值解法,其中包括对层流边界层的微分法,对湍流边界层的积分法以及利用Orr-Sommerfeld方程计算转捩的数值解,当扰动振幅达到e~(13.5)时发生转捩。 按照上述方法,本文计算了ONERA M6后掠角为30°的机翼,计算结果分别和Cebeci和Cousteix的结果作了对比,二者吻合较好。
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| 关 键 词： | 层流边界层 转捩 扰动振幅 湍流边界层 |
A NUMERICAL CALCULATION OF THREE DIMENSIONAL IMCOMPRESSIBLE LAMINAR: TRANSITION AND TURBULENT BOUNDARY LAYERS |
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| Yan Jiaxiang Yu Bin.A NUMERICAL CALCULATION OF THREE DIMENSIONAL IMCOMPRESSIBLE LAMINAR: TRANSITION AND TURBULENT BOUNDARY LAYERS[J].Acta Aerodynamica Sinica,1991(2). |
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| Authors: | Yan Jiaxiang Yu Bin |
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| Institution: | Northwestern Polytechnical University |
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| Abstract: | This paper presents a method of calculating the three dimensional boundary layers in imcompressible viscous flow, including a differential method for laminar boundary layer, an integral method for turbulent boundary layer and numerical solution method for Orr -Sommerfeld equation in which transition occurs only if the amplification of the disturbance reaches Exp13.5.According to these methods, this paper calculated a swept wing ONERA M6. Some results are compared with Cebeci and Cousteix, they are in good agreement with each other. |
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| Keywords: | laminar boundary layer transition point amplification of disturbance turbulent boundary layer |
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