摘要
在文献［1］结合NND格式思想［2］提出的有限元格式基础上，给出一种有限差分－有限元混合方法。通过求解完全Navier－Stokes方程，得到了高超声速情况下钝头体轴对称绕流的较满意结果，同时讨论了网络Re数对驻点热流的影响。
A hybrid finite difference-finite element (FD-FE) method is presented in the present paper by applying the idea of the NND scheme in finite differencc method. The hybrid method is employed in the axis ymmetric hypersonic flow calculation around a sphere by solving the complete set of Navier-Stokes cquations and satisfactory results are obtained. Besides, the influence of cell Reynolds number on the sphere stagnation point heat transfer rate is analysed by comparing the present results with those available in references,which further demonstrates the realiability and effectivcness of the hybrid method presented herein.
出处
《空气动力学学报》
CSCD
北大核心
1997年第4期462-467,共6页
Acta Aerodynamica Sinica
关键词
高超声速流
热流
有限差分
有限元
气动热计算
hypersonic flow
heat transfer rate
cell Reynolds number
hybrid FD-FE method
