Ehsan Bahmyari

In recent decades, the design and performance of high-speed monohull flying boats have gained increasing attention as a key topic in the maritime industry. These types of vessels, with their numerous capabilities and high performance, have become an attractive alternative for maritime transportation. This thesis focuses on the hydrodynamic analysis of a high-speed monohull flying boat. For this purpose, numerical and experimental validations were first conducted. Subsequently, the hydrodynamic performance of this vessel was examined in shallow water and compared to its performance in deep water. Additionally, the hydrodynamic performance of the vessel in both shallow and deep water, with the presence of appendages (propeller shaft and rudder), was investigated and compared. The results showed that the vessel has higher resistance in deep water compared to shallow water. Furthermore, shallow water increases the heave of the vessel but does not significantly affect the trim angle compared to deep water. The presence of appendages in both shallow and deep water also increases the vessel's resistance.