航空学报 > 1994, Vol. 15 Issue (9): 1066-1069

TVD格式数值模拟斜腔内旋涡运动

黄守龙1, 武晓松2, 徐诚2   

  1. 1. 浙江大学流体传动及控制研究所,杭州,310027;2. 南京理工大学机械学院,南京,210014
  • 收稿日期:1993-04-06 修回日期:1993-11-19 出版日期:1994-09-25 发布日期:1994-09-25

NUMERICALSIMULATION OF VORTE4XFLOW IN AN OBLIQUE CAVITY USING TVD SCHEME

Huang Shoulong1, Wu Xiaosong2, Xu Cheng2   

  1. 1. Institute for Fluid Pewer Transmission and Control,Zhejiang University,Hangzhou,310027;2. Mechanical Institute, Nanjing University of Science and Technology,Nanjing,210014
  • Received:1993-04-06 Revised:1993-11-19 Online:1994-09-25 Published:1994-09-25

摘要: 采用TVD有限体积格式,通过求解非定常可压缩N-S方程,对恒定出入口压力比驱动下的斜腔内部流动进行了数值模拟。计算后得到清晰的流场涡系结构及其发展过程;显示了空腔流动中的自维持振荡现象;并分析了剪切层不稳定对周期性振荡的作用机制。

关键词: TVD格式, 旋涡, 空腔流, 自激振荡

Abstract: The time dependent axisymmetric Navier Stokes equations are solved by a TVD fi-nite volume scheme to simulate viscous flow in an oblique cavity driven by a constant pressure ratio p_e/p_0=0. 318.The numerical results demonstrate the formation and evolution of the complex vortexes structure in detail.self-sustained flow oscillation in the cavity is observed,and the interaction between shear-layer instability and oscillation is discussed.

Key words: TVD schemes, vortices, cavity flow, self oscillation

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