曲り円管内層流助走区間流れに関する研究 : 第2報、速度分布の可視化による測定

概要

論文の詳細を見る
Three-dimensional laminar-flow development in a curved pipe has been investigated by using flow visualization technics. The hydrogen bubble and the powder of pumice used in Japanese painting were applied to trace the main and secondary flows, respectively. During the distortion of the main flow towards the outer wall due to the centrifugal force in the midst of the development, an overshooting phenomenon which gives a cone-shaped low velocity zone in the cross sectional center is clearly identified. There is also an indication of an additional pair of Dean's type secondary motion assorted with the ordinary vortex pair of the boundary wall type. The flow structures depicted in the experiments are in good agreement with the theoretical solutions.
一般社団法人日本機械学会の論文
1984-01-28