傾斜面上を表面波を伴って流れる流下液膜の数値計算 : 第3報, 傾斜角および表面張力の影響

概要

論文の詳細を見る
Wave shapes and flow fields of falling liquid films down an inclined plate have been simulated with a finite difference method in which the algorithm is based on the HSMAC method and free boundary conditions are treated with newly proposed method. Effects of inclined angle of the plate and surface tension of the liquid are discussed. In the case of a constant fluid property, a constant flow rate and a constant disturbance frequency, the variation of inclined angle changes the wave shape remarkably because it affects governing dimensionless parameters such as Froude number, Weber number, and dimensionless disturbance frequency. Effects of the Froude number and the Waver number are shown separately. Wave peak heights decrease with decreases of Froude number and Weber number. For lower Froude number and Weber number, circulation flow in a large amplitude wave becomes smaller. The wave peak height and the wave celerity of the simulation agree well to previously proposed correlation equations.
一般社団法人日本機械学会の論文
1998-08-25