流体工学部門講演会講演論文集
Online ISSN : 2424-2896
セッションID: 0204
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0204 水平管群を横切る気液二相流の流路内ボイド率分布計測
三上 昂太村川 英樹杉本 勝美竹中 信幸
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会議録・要旨集 フリー

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Measurements of void-fraction distributions around a tube across horizontal tube bundle in liquid-gas two-phase flow were carried out using a void probe technique. Horizontal tube bundle was set in a vertical rectangular channel with 90 × 90 mm^2, and the tube layout was in-line. Outer diameter of the tube was 15 mm, and the pitch to the diameter ratio was 1.5. Void-fraction distributions were compared between 1^<st>, 4^<th> and 7^<th> rows in the 2^<nd> column, and between 1^<st> and 2^<nd> column in 4^<th> row. Furthermore, void-fraction distributions at 4^<th> row in the 2^<nd> column were measured by the void-probes with different length. Void-fraction distributions at 4^<th> and 7^<th> rows were almost the same with each other, and it was confirmed that the inlet effect could be neglected at 4^<th> row. Void-fraction distributions at the 1^<st> column facing on the wall surface was different from at the 2^<nd> column, and it were strongly influenced by the wall surface.
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© 2014 一般社団法人 日本機械学会
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