Berger, StephanStephanBergerBering, Rasmus MøllerRasmus MøllerBeringSteden, MaxMaxStedenShin, Keun WooKeun WooShinNielsen, Jens RingJens RingNielsen2024-04-152024-04-152024-04-048th International Symposium on Marine Propulsors (smp 2024)978-82-691120-5-4https://hdl.handle.net/11420/46484In this paper, we study the behaviour of propeller leading edge vortices, local tip vortices and trailing vortices for different operation conditions and tip geometries. It turns out that the pressure drop in the trailing vortex being relevant for cavitation inception strongly depends on the nature of the local tip vortex and of the leading edge vortex. Further, we demonstrate that applying tip rake to a given propeller design is an effective instrument to steer the vorticity distribution in the tip region allowing to increase cavitation inception speed while maintaining the propeller’s efficiency. Open water simulations were carried out using a RANS method and the k-ω SST turbulence closure model with curvature correction. The computational mesh was appropriately refined along the leading edge, the propeller tip and along the axis of the trailing vortex. An intuitive method for evaluating vortex quantities such as circulation, viscous core radius, the level of vorticity and pressure drop at different stations along the vortex axis is presented and applied. Finally, our findings are underpinned by experimental results from a cavitation inception test.enhttp://rightsstatements.org/vocab/InC/1.0/Propeller leading edge vortexpropeller tip vortex cavitation inceptionvortex detection and analysisdesign of silent propellersEngineering and Applied OperationsConference Paper10.15480/882.934710.15480/882.934710.15480/882.9294Conference Paper