INVESTIGATION OF THE INFLUENCE OF RAKE ANGLE ON THE HYDRODYNAMIC PARAMETERS OF MARINE PROPELLERS BY CFD METHOD

Abstract

The study employs a k-ω SST CFD model to analyze the influence of the blade rake angle (θ) on the performance of a B-Series propeller. Results indicate that increasing the rake angle signifcantly enhances the thrust coeffcient (K_T) and torque coeffcient (K_Q) under high load conditions, but its impact on open water effciency (η₀) is negligible. The research provides a quantifed database to support designers in optimizing thrust reserve and controlling adverse flow phenomena such as cavitation.