| 求解可压缩N－S方程的无粘－粘性分数步法 |
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| 引用本文： | 赵一鹗,余少志.求解可压缩N－S方程的无粘－粘性分数步法[J].推进技术,1996,17(6):40-42,68. |
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| 作者姓名： | 赵一鹗 余少志 |
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| 作者单位： | 南京航空航天大学动力工程系 |
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| 摘 要： | 用按物理过程作时间分裂的无粘－粘性分数步法求解可压缩Ｎ－Ｓ方程，无粘步用高效欧拉算法解欧拉方程，粘性步用全隐格式解抛物方程；并采取了有效措施消除由分步法产生的时间和空间不相容性，文中给出了轴对称喷管内外流场的数值模拟结果。
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| 关 键 词： | 发动机喷管，喷管气流，流动分布，数值模拟 |
IRVISCOUS-VISCOUS FRACTIONAL METHOD TO SOLVE N-S EQUATIAN SET FOR COMPRESSIBLE FLUID |
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| Zhao yi e and Yu Shaozhi.IRVISCOUS-VISCOUS FRACTIONAL METHOD TO SOLVE N-S EQUATIAN SET FOR COMPRESSIBLE FLUID[J].Journal of Propulsion Technology,1996,17(6):40-42,68. |
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| Authors: | Zhao yi e and Yu Shaozhi |
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| Institution: | Dept. of Power Engineering, Nanjing Univ. of Aeronautics and Astronautics,Nanjing, 210016;Dept. of Power Engineering, Nanjing Univ. of Aeronautics and Astronautics,Nanjing, 210016 |
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| Abstract: | n insteady compressible N-S equation set is solved with irviscous-viscous fractional method which splits the equations according to its physical process. In the irviscous-step, the Euler equations is solved with Efficient Euler Solver, and in the viscous-step the parabolic equation is solved with a whole implicit scheme. In order to remove both temporal and spatial inconsistencies resulted from the fractional, some efficent measure is taken. Simulated flow fields of inside and outside an axial symmetry nozzle are given by using irviscous-viscous fractional method. |
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| Keywords: | Engine nozzle Nozzle gas flow Flow distribution Numerical simulation |
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