Research on configuration and hydrodynamic characteristics of medium and lightweight high-speed tracked amphibious vehicle

Research on the hydrodynamics and configurations of medium-lightweight high-speed tracked amphibious vehicles remains limited both domestically and internationally. To enhance the aquatic velocity of amphibious vehicles, this study proposes a multi-effect amphibious configuration integrating M-type channels with planing-hull geometry. Through Computational Fluid Dynamics (CFD) numerical simulations, hydrodynamic performance metrics—including resistance characteristics, navigation attitude, hull heave, and free-surface wave patterns—were systematically analyzed across speeds ranging from 0 to 55 km/h in calm water. Results demonstrate that the planing-hull configuration, leveraging aerodynamic lift generated by M-type channels and hydrodynamic lift from the stern trim plate, achieves significant vehicle elevation with a marked reduction in peak resistance.