| 振荡叶栅三维非定常流动数值分析 |
| |
| 引用本文： | 杨青真,施永强,黄秀全,周新海.振荡叶栅三维非定常流动数值分析[J].空气动力学学报,2006,24(1):62-66. |
| |
| 作者姓名： | 杨青真 施永强 黄秀全 周新海 |
| |
| 作者单位： | 西北工业大学,动力与能源学院,陕西,西安,710072 |
| |
| 基金项目： | 国家自然科学基金资助（项目批准号50376053） |
| |
| 摘 要： | 以全三维、非线性、非定常欧拉方程计算作用于振荡叶栅的非定常气动载荷。欧拉方程的数值离散采用了具有时、空二阶精度的MacCormack显式分裂的两步格式,用时间推进方法得到其数值解。应用动网格技术捕获叶片的运动,保证叶片振动过程中网格边界与叶片表面保持一致。以相移周期条件处理具有不同相位的叶片振动问题,同时发展了伪边界形状修正方法以简化周期边界条件处理。
|
| 关 键 词： | 振荡叶栅 非定常流 时间推进方法 相移条件 动网格 |
| 文章编号： | 0258-1825（2006）01-0062-05 |
| 收稿时间： | 2005-01-28 |
| 修稿时间： | 2005-01-282005-05-24 |
Numerical analysis of three-dimensional unsteady flow around oscillating cascades |
| |
| YANG Qing-zhen,SHI Yong-qiang,HUANG Xiu-quan,ZHOU Xin-hai.Numerical analysis of three-dimensional unsteady flow around oscillating cascades[J].Acta Aerodynamica Sinica,2006,24(1):62-66. |
| |
| Authors: | YANG Qing-zhen SHI Yong-qiang HUANG Xiu-quan ZHOU Xin-hai |
| |
| Abstract: | Three-dimensional unsteady aerodynamic loads of oscillating blades are simulated using three-dimensional nonlinear Euler equations.The Euler solution is obtained using time-marching method by MacCormack two-step finite-difference scheme,which has second-order accuracy in both time and space.The moving-grid approach is adopted to capture the vibration of blades,and to ensure the grid boundary identical with the blade surface.For phase-shifted periodic conditions,the pseudo-boundary shape correction method is applied to simplify the specification of periodic boundary condition. |
| |
| Keywords: | oscillating cascade unsteady flow time-marching method phase-shifted periodic condition moving-grid |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
