回転円盤上の液膜流れへの熱の影響 : 第2報, 径方向成分を考慮した液膜厚みの解析

概要

論文の詳細を見る
The thermal effect and radial dependence on unsteady axisymmetric thin liquid film flow on a rotating disk is analyzed by asymptotic methods for unit order Prandtl number and unit order Reynolds number. When the disk temperature T_d remains constant and equal neither to the temperature T_o of the surrounding gas nor that of the initial liquid film, the velocity fields of the flow take different forms from those case of T_d=T_o, due to a change of kinematic viscosity and surface tension. The process in which initial non-uniformity in film profile tending to smooth out is also affected by these changes. A long-scale evolution equation describing the shape of thin liquid film interface as a function of space and time is derived, and an asymptotic radial dependent solution for transient film thickness is obtained. The result elucidates how a film thins to a planar shape when temperature gradient exists.
一般社団法人日本機械学会の論文
1999-08-25