Cao, LiushuaiLiushuaiCaoLiu, KangKangLiuWan, DechengDechengWan2024-04-172024-04-172024-04-048th International Symposium on Marine Propulsors (smp 2024)978-82-691120-5-4https://hdl.handle.net/11420/46481Tip vortex cavitation (TVC) of a propeller can significantly increase flow noise and vibration, resulting in reduced efficiency. Therefore, predicting the development of TVC and exploring control methods is of great value. We investigated the potential for controlling propeller TVC through active water jets. Utilizing large eddy simulation and the Schnerr-Sauer cavitation model, we studied the TVC of the INSEAN E779A propeller. Open water characteristics and cavitation results were analyzed and compared with experimental data. Subsequently, seven holes were opened on the center line (top injection), pressure side (pressure side injection), and suction side (suction side injection) of the propeller blade tip. Active water jets were released from these holes to control the TVC. Results indicated that the vortices on the propeller’s surface developed outward along the radial direction due to the centrifugal force during rotation. Top injection had a limited effect on reducing the development length of TVC. However, injecting water on both the pressure side and suction side effectively inhibited TVC development, albeit causing structural deformation of the propeller sheet cavitation in both cases.enhttp://rightsstatements.org/vocab/InC/1.0/Flow controlpropellertip vortex cavitationwater jetsSchnerr-Sauer modelEngineering and Applied OperationsConference Paper10.15480/882.934410.15480/882.934410.15480/882.9294Conference Paper