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Proceedings Paper

Visualization study of the stream line and secondary flow in the running-water bathtub
Author(s): Shuya Kamei; Seita Isshiki; Akira Takahashi
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Paper Abstract

By the injecting nozzles' position of the pressurized head tank attached to the water bathtub, water jet flow can be injected to the rectangular water bathtub or diffuser shape water bathtub. The fluid velocity can be set to two kinds of speeds in these bathtubs. The purpose of present study is to visualize flow pattern inside water bathtub. The water bathtub having uniform water flow can be utilized as a very small pool in which everybody can enjoy swimming or can practice physical exercise for health. The utility values for water bathtub can be found in many fields. In this study, we use small transparent rectangular water bathtub made of acrylic resin and materials for the observation of flow pattern inside in it. The method how to make uniform flow inside water bathtub is by injecting water from many jet nozzles attached to the pressurized water tank situated in the front side of water bathtub. Then the downstream water is rejected from overflow bank attached to the rear side of water bathtub. The experiment to visualize flow inside bathtubs is carried out by using liquid and powder as tracers. Much technical knowledge is obtained by the present study.

Paper Details

Date Published: 1 August 2003
PDF: 8 pages
Proc. SPIE 4948, 25th International Congress on High-Speed Photography and Photonics, (1 August 2003); doi: 10.1117/12.516988
Show Author Affiliations
Shuya Kamei, Fukushima National College of Technology (Japan)
Seita Isshiki, Fukushima National College of Technology (Japan)
Akira Takahashi, Fukushima National College of Technology (Japan)


Published in SPIE Proceedings Vol. 4948:
25th International Congress on High-Speed Photography and Photonics
Claude Cavailler; Graham P. Haddleton; Manfred Hugenschmidt, Editor(s)

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