PBCF propeller caps have the effect of reducing the negative pressure area and flow velocity behind the propeller, thereby increasing the propeller efficiency by 1-2%. At the same time, reducing the drag on the rudder and the suction behind the stern. The total effect can reduce fuel consumption by 2-5%. Moreover, it also has the effect of reducing rudder cavitation and propeller noise.
MARITECHS designed PBCF propeller caps by parametric modeling method combined with CFD calculation. Usually a PBCF design, we will conduct calculations with up to hundreds of options to find the most optimal one. With this PBCF design approach, a comprehensive assessment of the influence of design parameters on propeller performance is ensured. From there, the optimal cases will not be missed.
Video about self-propulsion simulation of cargo vessel 4500 DWT with PBCF