Abstract:
Cavitation in marine propeller is a common phenomenon and mitigate it is a demanding issue. In this regard, many studies have been carried out and some solutions have already been proposed. In fact, some of them are already in use. Air injection technique can be a new approach to this prevailing problem. The main focus of the current study is to construct a feasible numerical model that could suffice the approach and eventually use the model to investigate the effectiveness of this method. For this novel purpose, the k-ω SST turbulence model with the curvature correction and the Zwart cavitation model have been applied on the commercial CFD Code ANSYS. The combined model has been applied on a modified INSEAN E779a propeller. In case of light weight expandable mass, the method has been found very appealing. Besides, the model is robust enough to encompass the complexities of the cavitation phenomenon.
