く形断面を有する二次元返しベンド凸面上の凍結挙動
1992 年 58 巻 553 号 p. 2863-2870
詳細
1992 年 58 巻 553 号 p. 2863-2870
An experimental study has been performed to investigate the freezing behavior on the convex wall of a return bend with a rectangular cross section. The experiments were carried out for the duct heights of 17mm and 30mm with a duct width of 300mm and a radius of curvature of 159mm. The convex wall temperature was uniformly maintained below the freezing temperature of water, while the concave wall was insulated. It was found that step wise ice formation was observed on the convex wall of the return bend and that the step position at the steady-state condition was closely dependent on both the water-flow velocity and the cooling-temperature ratio.
