Numerical simulation and experiment for the ultrasonic field characteristics of ultrasonic standing wave atomization

Ultrasonic standing wave atomization (USWA) can obtain micron-sized spherical droplets from high viscosity or surface energy liquids, which mainly depend on the high-energy density of a sound field. In this paper, formation an ultrasonic field be generated by vibration tool head driven magnetostrictive transmitters. Based simulation environment Comsol Multiphysics software, numerical study about characteristics was carried out. The influence arrangement transducer, shape and parameters transducer head, length resonator pressure studied. Then, frequency It could seen that distribution is better when double transmitters were facing each other, cavity with n = 5 nodes, spherical. On basis, primary (f 20 kHz) analyzed, optimal f 19.8 kHz obtained. measured, computed results compared experimental results. Finally, based optimized simulation, USWA used to atomize glycerol-water solution different concentrations. showed established glycerol aqueous solutions viscosities 1.01 × 10–3 Pa·s 1200.58 Pa·s.