| 非定常N－S方程的线化及其差分求解 |
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| 引用本文： | 张扬军,陶德平. 非定常N－S方程的线化及其差分求解[J]. 北京航空航天大学学报, 1994, 0(1) |
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| 作者姓名： | 张扬军 陶德平 |
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| 作者单位： | 北京航空航天大学动力系 |
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| 摘 要： | 在微幅简谐振荡的假设下，对计算平面内非定常Ｎ－Ｓ方程进行了线比，并在ＭａｃＣｏｒｍａｒｋ于１９８０年提出的半隐格式的基础上，发展了一种适用于求解计算平面内线化Ｎ－Ｓ方程的差分格式．用该差分格式求解计算平面内的线化Ｎ－Ｓ方程时，可以避免求解五对角方程；且时间步长可以取得较大，计算效率高．
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| 关 键 词： | 非定常流动；差分方程；振荡；数值模拟；计算方法；N－S方程；线化 |
LINEARIZATION AND CALCULATION OF UNSTEADY N-S EQUATION |
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| Zhang Yangjnn, Tao Deping. LINEARIZATION AND CALCULATION OF UNSTEADY N-S EQUATION[J]. Journal of Beijing University of Aeronautics and Astronautics, 1994, 0(1) |
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| Authors: | Zhang Yangjnn Tao Deping |
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| Abstract: | The unsteaty N-S equations in a computational plane have been linearized by adoptingthe assumption that the oscillating is harmonic. To sovle the linearized N-S equations. a newdifference scheme has been developed. There is no need to sovle five-diagonal equations byusing the new scheme, the computational time step length can be increased and the computa tion efficiency is high. |
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| Keywords: | non-steady flow difference equations oscillations numerical simulation computational method: N-S equations linearization |
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