Mathematical modeling of operation of tunnel thruster of drilling vessel

The paper contains the structure of mathematical model of operation of drilling vessel tunnel thruster. The model takes into account the possibility of equipping the drilling vessel by two tunnel thrusters. They can be located both in one end of the vessel and distributed along it. The given mathematical model is universal and can be used for modeling movement of any vessel equipped by the proper tunnel thruster. One should only know definite information about design factors of a particular tunnel thruster.