Numerical Analysis of Cavity Shape according to Ventilated Condition and Cavitator AoA

The shape, size, and orientation of the cavity are important factors in the case of supercaviting underwater vehicle. In order to overcome experimental limitations for this study, we performed computational analysis approach through the study. In this study, we developed multiphase flow analysis code using a homogeneous mixture model for the 3D Navier-Stokes equation. The experimental results and the computational analysis results of the cavity tunnels were compared and verified. As a result of this comparison process, it showed fairly good agreement under various condition. Computational analysis was carried out on the change of cavity shape and cavity number according to injection flow rate by artificial injection.