Numerical prediction of small scale cavities using a coupled mixture-bubble model

In this study a hybrid Eulerian mixture - Lagrangian bubble model is developed for numerical simulation of cavitating flows.\ua0In this model, the large scale cavities are represented in the Eulerian framework using the homogeneous mixture model, while\ua0the small sub-grid structures are tracked as Lagrangian bubbles. Also, at each time step small cavity structures in the Eulerian\ua0framework are transformed to the Lagrangian framework to be treated as sub-grid bubbles and vice versa. Using this model, it\ua0is possible to represent various cavity structures of different length scales with reasonable computational cost