A computer system for the complete design of ship propellers

The integrated computer system presented in this paper is capable of conducting the complete design calculations of ship propellers, including their analysis in the conditions of a real inflow velocity field behind the ship hull.The system enables solution of the following tasks:
• calculation of the scale effect on the velocity field in the area of propeller operation,
• correction of this velocity field due to the presence of the rudder,
• maximization of the propeller efficiency,
• optimization of the propeller blade geometry on the basis of the cavitation and strength requirements,
• optimization of the propeller number of blades and of the blade geometry on the basis of the level of induced pressure pulses and unsteady bearing forces.The computer system contains numerous options for visualization of the input data and the results of calculations.