| 平板边界层扰动演化特征的研究 |
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| 引用本文： | 李佳.平板边界层扰动演化特征的研究[J].唐山学院学报,2014(3):5-7. |
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| 作者姓名： | 李佳 |
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| 作者单位： | 唐山学院基础教学部,河北唐山063000 |
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| 基金项目： | 国家科技部973项目（2009CB724103）;唐山学院博士创新基金项目（tsxybc201305） |
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| 摘 要： | 基于空间模式计算不可压缩边界层,基本流选用平板层流Blasius解,采用高精度的紧致有限差分格式数值模拟三维边界层扰动方程。并应用具体的算例,研究了入口不同扰动幅值对转捩位置的影响,以及不同小幅值下扰动的演化特征。
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| 关 键 词： | 不可压缩边界层 数值模拟 扰动幅值 转捩 演化特征 |
An Evolution Research of the Boundary Layer Disturbance of a Flat Plate |
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| LI Jia.An Evolution Research of the Boundary Layer Disturbance of a Flat Plate[J].Journal of Tangshan College,2014(3):5-7. |
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| Authors: | LI Jia |
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| Institution: | LI Jia (Department of Fundamental Teaching, Tangshan College, Tangshan 063000, China, China) |
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| Abstract: | In this paper,the three dimensional boundary layer disturbance equations will be nu-merically simulated by high precision compact finite difference,based on the calculation of incom-pressible boundary layers with the spatial model and the Blasius solution.The basic flow is the laminar Blasius similarity solution.With the help of concrete examples,the author studies the effect of different disturbance amplitudes of the entrance on transition location,and evolution of small-amplitude disturbance. |
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| Keywords: | incompressible boundary layers numerical simulation disturbance amplitude transi-tion evolution characteristics |
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