2010 Volume 10 Issue Special_Issue Pages s67-s72
An experimental and theoretical study was conducted to investigate the characteristics of liquid film flowing around a horizontal circular cylinder. The standing wave with a peak line pointing to the flow direction appears on the film surface. The wave length was obtained theoretically from the force balance on the film surface including the effect of centrifugal force. The calculated wave lengths agree with those measured experimentally for three kinds of test liquids. When the film Reynolds number increases larger than 500, the viscous effect on the wave motion can be neglected.
