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| 高超音速化学非平衡钝劈绕流数值计算 | |
| 引用本文： | 沈建伟,瞿章华. 高超音速化学非平衡钝劈绕流数值计算[J]. 航空学报, 1989, 10(1): 67-69 |
| 作者姓名： | 沈建伟 瞿章华 |
| 作者单位： | 长沙国防科技大学(沈建伟)，长沙国防科技大学(瞿章华) |
| 摘 要： | 自1970年Davis提出粘性激波层方法以来,用数值方法求解高超音速轴对称钝体绕流问题国内外已做了大量工作,但至今仍未见到关于平面问题的计算结果。对于平面问题,虽然方程在形式上比轴对称简单,但由于二维效应,激波层较厚,用文献[2]的方法向下游区推进有困难。另外,在驻点线上采用极限关系式虽能克服方程的奇性,但驻点解对流向步长Δξ有依赖。 |
| 关 键 词： | 数值计算 高超音速流 粘性流 化学反应流 二维流动 钝体 |
| 收稿时间： | 1987-08-12; |
NUMERICAL CALCULATIONS OF HYPERSONIC NONEQUILIBRIUM FLOW OVER A BLUNT WEDGE |
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| National University of Defense Technology Shen Jianwei and Qu Zhanghua. NUMERICAL CALCULATIONS OF HYPERSONIC NONEQUILIBRIUM FLOW OVER A BLUNT WEDGE[J]. Acta Aeronautica et Astronautica Sinica, 1989, 10(1): 67-69 | |
| Authors: | National University of Defense Technology Shen Jianwei and Qu Zhanghua |
| Affiliation: | National University of Defense Technology Shen Jianwei and Qu Zhanghua |
| Abstract: | A numerical method is used to compute the hypersonlc, nonequilibrium, viscous shock-layer flow over a blunt wedge. A truncated series is used to develop the differential equations at the stagnation streamline. As a result, the initial value for the viscous shock-layer equations can be improved. The continuity equation and the transversal momentum equation are solved in a coupled way, so that the calculations can be matched with the solutions at far downstream of the planar blunt-bodies. The numerical results are given and compared with those from other methods. |
| Keywords: | numerical calculation hypersonic flow viscous flow chemical reacting flow planar flow blunt body. |
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