タービン流れの非定常シミュレーションの可視化について

IR

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  • Visualization for unsteady simulation of turbine flow field

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Abstract

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.

資料番号: AA0045948040

レポート番号: NAL SP-57

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