Abstract
The finite element method was employed to determine an acceptance method for cathodically protecting bronze propellers on a Cu-Ni surfaced slip. Experiments conducted in a water tunnel were used to establish the need for cathodic protection for this case and to determine the needed data. The analysis of the propeller geometry was accomplished by using a highly twisted wedge shape and periodic boundary conditions. A number of individual anode locations and multi-anode protection systems were investigated to determine the configuration with the least power dissipation. A method for establishing current requirements for each of the three anodes chosen was devised to ensure adequate protection for all of the propeller surfaces. These results were extended to cover a range of propeller diameters.
