| 非定常N－S方程的线化及其差分求解 |
| |
| 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(1). |
| |
| 作者姓名： | 张扬军 陶德平 |
| |
| 作者单位： | 北京航空航天大学动力系 |
| |
| 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．
|
| 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 |
| |
| Zhang Yangjnn, Tao Deping.LINEARIZATION AND CALCULATION OF UNSTEADY N-S EQUATION[J].Journal of Beijing University of Aeronautics and Astronautics,1994(1). |
| |
| Authors: | Zhang Yangjnn Tao Deping |
| |
| 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. |
| |
| Keywords: | non-steady flow difference equations oscillations numerical simulation computational method: N-S equations linearization |
| 本文献已被 CNKI 等数据库收录！ |
