回転円すいを揚水する液膜の永久磁石による誘導加熱

抄録

A rotating cone composed of simple structure causes a pumping-up phenomena, where filmwise or filamentwise flow pattern is generated depending on the viscosity along the slope of the cone. In this paper, we propose a heating mechanism of the flow, which uses an induction heating with permanent magnetics. The mechanism heats the flow without disturbing and contacting the flow. However, a necessary force to rotate the cone under the magnetic field is unclear. So, we investigate the relation between the necessary torque and the rotation rate. It is found that an increasing rate of the necessary torque is decreasing as the rotation rate is increasing. This is mainly because the Lorentz force is decreasing due to the induction heating.