Numerical simulation of planing motion and hydrodynamic performance of a seaplane in calm water and waves

The high-speed motion of a seaplane involves the coupled hydrodynamic and aerodynamic effects. suction force, pressure, free surface model were numerically investigated to understand characteristics seaplane's planing motion. study utilized SST-DDES turbulence analyse Overset mesh method rigid body employed simulate substantial seaplane. volume fluid (VOF) was used capture sharpen interface between water air. First, verification validation (V&V) performed by comparing results with those towing tank experiments. Second, air-water entrainment in calm surfaces presented, pressure distribution on analysed discussed. Numerical simulations while considering wave parameters different velocities, wavelengths, heights. accelerations fore, aft, centre gravity demonstrated presence effect. evolution at bottom fuselage observed. investigation revealed that force waves plays role influencing motions seaplane.Highlights hydrodynamics aerodynamics seaplanes is interdisciplinary. numerical schemes, including turbulent model, overset method, have proven be effective accurate for simulating flow field characteristics.The greater speed height, faster are peak trough values pitch. As wavelength increased, value decreased gradually.The exhibited significant periodicity. acceleration aft largest, whereas mild, than fore. indicates hinders takeoff during