A new type of liquid-solid fluidized bed (LSFB), the pulsating intermittent LSFB (PI-LSFB), which uses pulsating liquid flow, was analyzed through numerical and experimental study. A good agreement between numerical simulation results and laboratory experimental measurement data was achieved.The mass transfer efficiency between the liquid and solids phases was enhanced since the relative velocity was significantly improved. The flow characteristics of the PI-LSFB were analyzed through the Eulerian-Eulerian approach, incorporating the kinetic theory of granular flow. The solids holdup