The deformed oblate drop’s free translational oscillations

Abstract Free translational oscillations of deformable liquid droplet are considered. It is placed into a vessel filled with another liquid. This has an equilibrium revolution shape. The axis this form perpendicular two parallel solid plates – floor and cover vessel. arbitrary contact angle between the interface substrate can take values in range 0 π. A line velocity linearly proportional to deviation from its initial position. Proportionality coefficients (Hocking’s parameters) individual for any substrate. They characterize dissipation coefficient, but whole system’s sum all coefficients. There three characteristic natural frequency intervals case small aspect ratio. High frequencies capillary wave at interface. middle fundamental or main one. Low correspond drop stationary angle. cylindrical highest frequency.