| Abstract: | We consider the motion of a liquid droplet inside a capillary of a porous medium under the action of a static force and an acoustic field. We derive the equation of motion of the droplet in the capillary and analyze numerically its solution. We show that the vibration attenuates the influence of the capillary force. Due to the effect of the acoustic field, the droplet motion in a capillary of constant cross-section starts at a lower value of the static force, and the reciprocal velocity of the droplet increases. Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 43, No. 2, pp. 155–161, February 2000. |
