Towards Numerical Simulation of Transient Slurry -Cavitated Water -Vapor Flows

In this work, a multi -scale modeling of c avitation -erosion phenomena performed in an Euler ian –Lagrang ian two -way coupling approach is developed . Cavitation -erosion phenomena are widely seen in multi -phase flow with different sizes of time and length scale. Based on the multi -sca le concepts , the i nformation obtained at the level of small length scales can be used to provide closure information at the level of larger length scales . First of all in our implementation , a two -phase mixture flow model and a temperature dependent homoge neous equilibrium saturation models are used simulate phase transitions and steam water interfaces. Subsequently, solid particle trajectories caused by the translation and rotation and particle -wall collisions are evaluated by a Lagrangian approach based o n the continuum flow information. Then, an Euler ian –Lagrang ian two way coupling are used to evaluate t he interactions between the gas -liquid mixture and dispersive solid particle s such as the drag, virtual mass and lift forces.