This thesis investigates the hydrodynamic performance of azimuth and bow thrusters on an offshore supply vessel using Reynolds-Averaged Navier-Stokes (RANS) simulations. It considers the performance of the azimuth thruster at high steering angles and evaluates the effectiveness of the bow thruster at varying ship speeds and heading angles. In addition, a maneuvering model is developed using virtual PMM (Planar Motion Mechanism) tests, which is then applied to simulate ship turning maneuvers. The main objective of this research is to improve the understanding of the complex flow dynamics around thrusters and to contribute to the improvement of the operational safety of ships.

This thesis investigates the hydrodynamic performance of azimuth and bow thrusters on an offshore supply vessel using Reynolds-Averaged Navier-Stokes (RANS) simulations. It considers the performance of the azimuth thruster at high steering angles and evaluates the effectiveness of the bow thruster at varying ship speeds and heading angles. In addition, a maneuvering model is developed using virtual PMM (Planar Motion Mechanism) tests, which is then applied to simulate ship turning maneuvers. The main objective of this research is to improve the understanding of the complex flow dynamics around thrusters and to contribute to the improvement of the operational safety of ships.