Arching Phenomenon of Granules in Fluid under Rotation System

Abstract

Abstract This research aims to explain the experimental model using theoretical analysis techniques, the mechanisms of convection and arching for granular sands with fluid under the rotation system. The arrangement of the granular sands with fluid arching thus forms a cylindrical container while under rotating. The results showed that the convection of the fluid, while a rotating continuously, the fluid then moves to the side surface of the container. Causing a center of the bottom of the container is empty space, the surface of the fluid to look like a parabolic curve. When the granular sands drop into an empty area to the center of container. To fill that area than arching at the center of the cylindrical container. That looks like an inverted parabola curve. The mixing mechanisms adjusted the small granular sands with fluid to stable more than large granular sands. This mechanism, can lead to a knowledge of the applications in agriculture and industry.