| 平板绕流的抛物化Navier－Stokes方程分析 |
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| 引用本文： | 陈国谦,陈矛章.平板绕流的抛物化Navier－Stokes方程分析[J].航空学报,1994,15(4):399-404. |
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| 作者姓名： | 陈国谦 陈矛章 |
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| 作者单位： | 北京航空航天大学动力系,北京,100083 |
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| 基金项目： | 国家基础研究重大关键项目（攀登计划）资助课题 |
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| 摘 要： | 对于绕有限长平板不可压粘性层流问题,循抛物化Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ（ＰＮＳ）方程,进行ＰＬＫ坐标摄动分析,推得与Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ（ＮＳ）方程结果完全一致的摩擦阻力规律。该规律在１５＜Ｒｅ＜１０＿４范围内成立,证实ＰＮＳ方程适应中等Ｒｅｙｎｏｌｄｓ数流动。
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| 关 键 词： | 纳维－斯托克斯方程 平板 简化 |
| 收稿时间： | 1992-05-21 |
| 修稿时间： | 1993-03-06 |
ON THE VISCOUS FLOW PAST A FLATPLATE VIA THE PARABOLIZED NAVIER-STOKES EQUATION |
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| Chen Guoqian, Chen Maozhang.ON THE VISCOUS FLOW PAST A FLATPLATE VIA THE PARABOLIZED NAVIER-STOKES EQUATION[J].Acta Aeronautica et Astronautica Sinica,1994,15(4):399-404. |
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| Authors: | Chen Guoqian Chen Maozhang |
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| Institution: | Department of Jet Propulsion, Beijing University of Aeronautics and Astronautics,Beijing,100083 |
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| Abstract: | ased on the parabolized Navier-Stokes equations,a law of drag coefficient is found by the perturbational analysis of PLK type which is exactly equivalent to that based on the complete Navier-Stokes equations,as far as the problem of an incompressible laminar flow past a finite flat plate at zero incidenee is coneerned. The fact that this law is valid for flows with Reynolds number down to 15 illustrates the adaptability of the parabolized Navier-Stokes equa-tions to viscous flows with moderately low Reynolds number. |
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| Keywords: | Navier-Stokes equaiton flat plates simplification |
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