著者

山口 道照 速水 洋

出版者

The Visualization Society of Japan

雑誌

可視化情報学会誌 (ISSN:09164731)

巻号頁・発行日

vol.10, no.1, pp.143-146, 1990

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Fluid flow in the rotor of a Francis-type pump-turbine was visualized using a water-table model by means of a tracer method and was pictured using a video camera rotating with the rotor. The moving flow pattern was compared with the predicted stream lines based on a potential flow analysis as well as conventional stills. It is demonstrated that a video movie technique is useful to visualize an unsteady flow and a slow motion with a reverse flow especially in a rotating impeller.