Zhao, MinshengMinshengZhaoWan, DechengDechengWan2021-03-102021-03-102019-0911th International Workshop on Ship and Marine Hydrodynamics (IWSH2019), Paper 71http://hdl.handle.net/11420/9037In the present study, a numerical simulation of cavitation flows around a damaged and a complete four –bladed E779A propeller has been carried out. The numerical results can be used as a reference to evaluate the working ability of a propeller in case of damage. In numerical simulation, the damaged propeller is simplified as the INSEAN E779A propeller missing one blade, hence, it’s a three-bladed. The typical unsteady dynamics are predicted by the RANS method with a modified shear stress transport (SST) k-ω turbulence model. The numerical results such as cavitation shape, pressure distribution and the thrust coefficient Kt are analysed and compared with each other, to investigate the influence of propeller damage. The numerical calculations of non-cavitating flow are obtained using pimpleFoam. The results of open water characteristics are basically in accordance with experimental data, the error is about 6%, indicating the reliability of the present method. Then the cavitation flow simulations are solved by InterPhaseChangeDyMFoam in the open source CFD software platform OpenFOAM with Schnerr-Sauer cavitation model. It can be noted that the propeller with a missing blade output less thrust, and the influence of the asymmetry of the three-blade propeller on the cavitation and open water characteristics is also obvious. The disturbance of cavitation flow to pressure variation is also the reason for the reduction of propeller thrust coefficient. With the change of advance coefficient, this influence will be strengthened.enhttp://rightsstatements.org/vocab/InC/1.0/Damaged propellerOpen water characteristicsCavitationnaoe-FOAM-SJTU solverTechnikIngenieurwissenschaftenConference Paper10.15480/882.336210.15480/882.3362Fluiddynamik und Schiffstheorie M-8Conference Paper