移動液膜自由界面のメニスカス不安定性

概要

論文の詳細を見る
The authors studied the instability of the meniscus of a viscous liquid between two closely spaced tilted plates when they are separated from each other in the normal direction of the plates. The instability has a close relation with that of the creeping flow in a Hele-Shaw cell and is caused by viscous forces In the present paper, a local capillary number is newly defined by the local Velocity of the leading meniscus the instability criterion is theoretically deduced. The simple criterion for the instability concerned with the local capillary number and the nondimen sional wave number for perturbation on the meniscus agrees well the experimental results. The theoretical formulation of the disturbances of the free surface predicts fairly well the experimental wavelength.
一般社団法人日本機械学会の論文
1990-03-25