CFD (computational fluid dynamics)-based improved ship planking jet rust removal simulation and modeling method

The invention discloses an improved ship shell plate jet flow rust removal simulation and modeling method based on CFD, and relates to the field of fluid mechanics and water jet flow rust removal, and the method comprises the specific steps: determining a water-gas two-phase flow research numerical model; establishing a three-dimensional model of a water jet rust removal flow field domain; determining a boundary surface of an inlet/outlet and a wall surface of each phase of the flow field, a speed and other boundary conditions of an air inlet of the flow field, a pressure intensity and other boundary conditions of a water inlet, and a slippage vector speed and other boundary conditions of the wall surface; performing area initialization on fluid in a nozzle area in the three-dimensional model; and carrying out CFD numerical calculation. According to the method for simulating the jet flow field under the condition that the nozzle moves relative to the ship planking, a more accurate parameter basis is provided