National Aerospace Laboratory
NEC Informatec Systems Ltd.
National Aerospace Laboratory
National Aerospace Laboratory
出版者
航空宇宙技術研究所
出版者(英)
National Aerospace Laboratory (NAL)
雑誌名
航空宇宙技術研究所特別資料: 航空宇宙数値シミュレーション技術シンポジウム2002論文集
雑誌名(英)
Special Publication of National Aerospace Laboratory: Proceedings of Aerospace Numerical Simulation Symposium 2002
巻
57
ページ
226 - 231
発行年
2003-03
抄録(英)
The unsteady flow phenomenon in turbomachinery changes drastically with changing operating condition. It is important that the various flow phenomena are predicted accurately from unsteady simulations of complicated flow field in blade rows. The period and scale of unsteady phenomena should be known for simulation in advance. In this study, the visualization system, which can visualize the unsteady flow phenomena during computation, has been applied to analyzing turbine flow field. The system which was conducted for multi-block parallel computing visualized effectively the unsteady flow behavior inside a turbine stage such as Karman vortex shedding, nozzle-rotor interaction, periodic separation occurrence on the rotor blade, etc. In this paper, the advantage of the visualization approach is clarified.