numerical simulation of resistance test for a naval vessel in shallow water

In this study, computational fluid dynamics (cfd) computations are employed to predict the resistance, trim, sinkage, wave pattern, and bulbous bow performance of the naval model dtmb 5415 in shallow water. the simulations encompass resistance tests at various depths and velocities within the cfd environment. the impact of water depth reduction on frictional and pressure resistance components, as well as ship trimming and sinking, is assessed. a comprehensive analysis of changes in the wave pattern around the ship is conducted. numerical results exhibit a substantial increase in resistance, trim, and sinkage with decreasing depth, highlighting the profound influence of shallow water conditions on the hydrodynamic behavior of the ship.