Application of Moving Particle Simulation Method on Water-skipping

Abstract Inspired by the phenomenon of stone-skipping in life, problem continuous water-skipping trans-media vehicles is widely concerned, which characterized multiphase flow-solid coupling, dynamic boundary, liquid surface fragmentation and high impact loads. Based on Moving Particle Semi-implicit numerical method, this paper investigates disc’s motion characteristics variation, focusing influence water entry parameters sloshing water-skipping. The simulation results indicate that disc skipping process can be divided into three stages: entry, sliding re-flying, during with large loads scale breaking droplet splashing. With certain rotation velocity, could maintain a smooth skipping, while there will lateral displacement due to Magnus effect. larger water-entry velocity angel is, load faster decay rate vacuole area broking splashing is. Predicted agrees well experimental result obtained from high-speed photography.