Journal of Physics: Conference Series | 2021
The influence of a TM wave on liquid flow in a capillary
Abstract
Electromagnetic wave propagation along capillary with flowing liquid is considered. It is shown that there are frequencies at which the electromagnetic wave has a longitudinal component of the electric field hitting the double electric layer and causing an increase in the liquid flow rate caused by vibration effects. The increase of the velocity is related to the decrease of the adhesion force of the liquid to the inner wall of the capillary. It is shown that if vibration is switched on, the outer layer of liquid starts to move with some speed, hence the flow rate of liquid will increase. The vibration is caused by electric component of electromagnetic wave. Calculations have shown that the considered effect should also be observed at low intensities of electromagnetic wave.