| 高分辨率有限差分—有限元混合方法及其在气动热计算中的应用 |
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| 引用本文： | 段占元,姜贵庆.高分辨率有限差分—有限元混合方法及其在气动热计算中的应用[J].空气动力学学报,1997,15(4):462-467. |
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| 作者姓名： | 段占元 姜贵庆 |
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| 作者单位： | [1]中国科学技术大学研究生院 [2]北京空气动力学研究所 |
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| 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，同时讨论了网格Ｒｅ数对驻点热流的影响。
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| 关 键 词： | 高超声速流 热流 有限差分 有限元 气动热计算 |
A High Resolution Hybrid Finite Difference-Finite Element Method and Its Applications to Aerodynamic Heating Calculation |
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| Duan Zhanyuan, Tong Binggang.A High Resolution Hybrid Finite Difference-Finite Element Method and Its Applications to Aerodynamic Heating Calculation[J].Acta Aerodynamica Sinica,1997,15(4):462-467. |
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| Authors: | Duan Zhanyuan Tong Binggang |
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| Abstract: | 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. |
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| Keywords: | hypersonic flow heat transfer rate cell Reynolds number hybrid FD-FE method |
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