| 叶片安装角槽式轮毂处理的三维数值模拟 |
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| 引用本文： | 李玲,陆亚钧. 叶片安装角槽式轮毂处理的三维数值模拟[J]. 航空动力学报, 1998, 13(1): 99-102,112 |
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| 作者姓名： | 李玲 陆亚钧 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 采用三维定常不可压Ｎ－Ｓ方程对叶片安装角槽式的轮毂处理的叶栅通道进行了数值模拟，分析了叶片安装角槽式的轮毂处理的扩稳机理，在计算中采用了非交错网格的ＳＩＭＰＬＥ算法，并解决了因使用非交错网格离散方程而带来的压力场振荡的抑制问题，紊流模型采用ｋ－ε两方程模型。
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| 关 键 词： | 压气机 轮毂 非定常流动 数值模拟 |
| 收稿时间： | 1997-02-01 |
| 修稿时间： | 1997-04-01 |
3-D NUMERICAL SIMULATION OF BLADE-ANGLE SLOTTED HUB TREATMENT |
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| Li Ling and and Lu Yajun. 3-D NUMERICAL SIMULATION OF BLADE-ANGLE SLOTTED HUB TREATMENT[J]. Journal of Aerospace Power, 1998, 13(1): 99-102,112 |
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| Authors: | Li Ling and and Lu Yajun |
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| Affiliation: | 4th Dept.Beijing University of Aeronautics and Astronautics,Beijing 100083 |
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| Abstract: | Three-dimensional incompressible steady time-averaged N-S equation,continuity equation and k-ε turbulence model equations are applied to calculation of the flowfield in the cascade passage with blade-angle slotted hub treatment.The mechanism of extending stability by blade-angle slotted hub treatment is elaborated by means of a three-dimensional viscous numerical simulation.It is revealed that a pressure difference between suction and pressure sides induces a strong flow which enters in the rear of the slot and pours out from the front of the slot.This flow blows off the low energe boundary layer and retards stall emergence.The SIMPLE algorithm with non-stagger grid is employed to solve the problem of the pressure oscillation. |
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| Keywords: | Compressor Wheel hub Treatment Nonsteady flow Numerical simulation |
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