A HYBRID MODEL FOR SIMULATION OF CAVITATING FLOWS

In the current study a hybrid multi-scale model is implemented in OpenFOAM to simulate cavitating flows. In this model, the large vapour structures are handled using the Eulerian single fluid mixture method and the small scale structures are treated as Lagrangian spherical bubbles. The new model is developed by improving the InterPhaseChangeFOAM solver and coupling it with the lagrangian library. This model is similar to the work of Vallier [5] but with improvements in some features including the continuity and volume fraction equations as well as the calculation of mixture properties. This abstract focuses on these improvements. Finally, qualitative results of cavitating flow over NACA 0015 hydrofoil is presented to show the model performance.