| 超声速边界层中小幅值T-S波的数值研究 |
| |
| 引用本文： | 袁湘江,周恒.超声速边界层中小幅值T-S波的数值研究[J].应用数学和力学,2000,21(12):1211-1214. |
| |
| 作者姓名： | 袁湘江 周恒 |
| |
| 作者单位： | 1.天津大学力学系, 天津300072; |
| |
| 基金项目： | 国家95攀登计划资助项目!(19732 0 0 5) |
| |
| 摘 要： | 对来流马赫数Ma∞=45的平板边界层中,幅值A分别为来流速度的0.01,0.001,0.0001倍的扰动波传播的物理过程进行了直接数值模拟。计算采用NND格式。模拟中发现即使扰动幅值尚小时,流场中即已出现小激波。
|
| 关 键 词： | 直接数值模拟 小激波 可压缩边界层 |
| 收稿时间： | 2000-03-03 |
| 修稿时间： | 2000_03_03 |
A Numerical Study for Small Amplitude T-S Waves in a Supersonic Boundary Layer |
| |
| YUAN Xiang-jiang,ZHOU Heng.A Numerical Study for Small Amplitude T-S Waves in a Supersonic Boundary Layer[J].Applied Mathematics and Mechanics,2000,21(12):1211-1214. |
| |
| Authors: | YUAN Xiang-jiang ZHOU Heng |
| |
| Institution: | 1.Department of Mechanics, Tianjin University, Tianjin 300072, P R China;2.Research and Development Center of Aerodynamics of China, Mianyang, Sichuan 621000, P R China |
| |
| Abstract: | The propagation of the disturbance waves in a boundary layer at Mach number=4.5 is studied by direct numerical simulation(DNS),using NND scheme,and different amplitudes A=0.01,0.001,0.000 1 of the disturbance have been assumed.The numerical result shows that there might be shocklets induced in the boundary layer,even when the amplitude of disturbance wave is still small. |
| |
| Keywords: | direct numerical simulation shocklet compressible boundary layerH |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《应用数学和力学》浏览原始摘要信息 |
| 点击此处可从《应用数学和力学》下载免费的PDF全文 |
|
