DYNAMIC PERFORMANCE OF THE LEBLANC BALANCER FOR AUTOMATIC WASHING MACHINES

The paper describes a high-speed camera and a Particle Image Velocimetry (PIV) technique used on a transparent liquid balancing device for washing machines. Experimental results indicate that the baffle-liquid interaction renders fluid modes of vibration of circumferential and axial type. This complex swirl flow is comprised of two inertial waves; one of such waves is synchronous with the rigid body motion, while the other is a fluid backward traveling wave, thus enhancing the system damping capability. This damping phenomenon was revealed by the fluid flow visualization and Particle Image Velocimetry (PIV) technique employed. NOMENCLATURE