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ID 15542
Eprint ID
15542
フルテキストURL
著者
Takahashi Katsuaki Department of Industrial Chemistry
Tanioka Mamoru Department of Industrial Chemistry
Yoshio Tetsuo Department of Industrial Chemistry
抄録
Studies were carried out in order to know in some detail the transport phenomena through the interface in the viscous liquid moving in laminar flow. Experiments were carried out using ca. 88% glycerin solution, one added with an acid, and the other with alkali together with a small amount of phenolphthalein. Acidic glycerin solution was supplied to a long transparent cuvette of rectangular cross section through which the liquid was made to move slowly enough to establish the laminar flow, thin cords of coloured basic solution were introduced in the direction normal to the axis of flow at regular time intervals. The so obtained patterns of bending cords shortening in regular succession were photographed also at regular time intervals. The authors attribute the origin of the changing patterns of the cords to the velocity gradient existing in the acidic solution which accelerates the diffusion by increasing the concentration gradient near the cords as well as the increase of the interfacial area, and also the decrease of the thickness of the cords. Based on these idea a mathematical analysis was carried out and was obtained an equation which gives the change of the concentration distribution of two dimensional cords. Fair agreement was obtained between the results of mathematical analysis and those of experiments. Furthermore, the influence of the thickness of the cords, and that of the velocity gradient as well as of the diffusion coefficient on the concentration at the center of the cords were discussed.
発行日
1966-03-31
出版物タイトル
Memoirs of the School of Engineering, Okayama University
出版物タイトル(別表記)
岡山大学工学部紀要
1巻
1号
出版者
岡山大学工学部
出版者(別表記)
School of Engineering, Okayama University
開始ページ
37
終了ページ
43
ISSN
0475-0071
NCID
AA00733903
資料タイプ
紀要論文
言語
English
論文のバージョン
publisher
査読
無し
Eprints Journal Name
mfe