Research on the precision processing method for softness abrasive two-phase flow based on LSM

According to the precision machining problem of the structural surface mould manufacturing process, a method for soft grits two-phase flow precision processing on the level set method (LSM) is proposed. Based on the topological structure transformation of LSM, the mechanics model of liquid-liquid two phase flow in mould structuring surface precision machining was established. And the interface parameters of the abrasive two-phase flow were captured. Combining the Navier-Stokes equation, Volume of fluid Method (VOF) and SIMPLEC algorithm, the basic motion rule and related physical parameters of abrasive two-phase flow are solved. Because the simulation results of speed and pressure changes of the softness abrasive two-phase flow through 90° square bent tube are in accordance with test results of Taylor etc, which validated the effectiveness of proposed method. It contributes to the further research on softness abrasive flow precision machining.