Prediction of hypersonic boundary layer transition on sharp wedge flow considering variable specific heat |
| |
Authors: | Xu Mao Wei Cao |
| |
Institution: | 1. Department of Mechanics, Tianjin University, Tianjin 300072, P. R. China;
2. LiuHui Center for Applied Mathematics, Nankai University and Tianjin University, Tianjin 300072, P. R. China |
| |
Abstract: | When the air temperature reaches 600K or higher, vibration is excited. The specific heat is not a constant but a function of temperature. Under this condition, the transition position of hypersonic sharp wedge boundary layer is predicted by using the improved e N method considering variable specific heat. The transition positions with different Mach numbers of oncoming flow, half wedge angles, and wall conditions are computed. The results show that for the same oncoming flow condition and wall condition, the transition positions of hypersonic sharp wedge boundary layer move much nearer to the leading edge than those of the flat plate. The greater the oncoming flow Mach number, the closer the transition position to the leading edge. |
| |
Keywords: | hypersonic flow wedge boundary layer variable specific heat transition prediction improved eN method |
本文献已被 CNKI 维普 SpringerLink 等数据库收录! |
| 点击此处可从《应用数学和力学(英文版)》浏览原始摘要信息 |
| 点击此处可从《应用数学和力学(英文版)》下载免费的PDF全文 |
|