EFFECT OF HIGH-FREQUENCY VIBRATIONS OF LIQUID ON VISCOUS DROPLET IN THE HELE-SHOW CELL
An experimental setup was designed to study the dynamics of viscous drop inclusion in a thin gap (in the Hele-Shaw cell) with a high-frequency oscillating flow of low-viscosity fluid. An axisymmetric cell with a circular lateral boundary is considered, in which a low-viscosity fluid filling a cell performs ax- isymmetric radial oscillations. The facility is intended for experimental modeling of the behavior of viscous fluid inclusions in porous media with high-frequency oscillations of a low-viscosity fluid saturating the porous medium. A method has been developed for recording drop inclusion and studying its temporal dynamics. It was found that high-frequency radial oscillations of a low-viscosity fluid lead to different averaged effects. First, during vibrations, a viscous droplet inclusion changes its shape and stretches in the azimuthal direction, and secondly, during vibrations, free engagement drifts toward the center of the cell. The high viscosity of liquids is decisive in the detected vibration phenomenon.