著者

川橋 正昭 細井 健司 田村 健一 塩崎 孝壽 平原 裕行 山本 勝一 田中 正雄

出版者

社団法人 可視化情報学会

雑誌

可視化情報学会誌 (ISSN:09164731)

巻号頁・発行日

vol.10, no.1, pp.23-26, 1990

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We have proposed a new technique of illumination in a observation plane by sweeping of two laser beams scanned by the same face of a polygon mirror scanner. With this technique seeding particles in the plane are illuminated by each sweeping beam with short time difference controlled by incident cross angle of two beams to the scanner and angular velocity of the scanner. This can be named dual-beam-sweep laser speckle velocimetry.<BR>In this report, measurements of velocity distribution of flow in a T-type branch duct are performed by means of the velocimetry, and the results are compared with numerical results obtained by the finite volume method considering with k-e turbulence model.