Guo L., Deng S., Yang X., 2016, Numerical Simulation of Abrasive Water Jet Cutting Chemical Pipeline Based on SPH Coupled FEM, Chemical Engineering Transactions, 51, 73-78.
Abrasive water jet (AWJ) is an advanced machining technology, which presents better cutting quality than traditional machining methods. Because the large deformation in finite element method (FEM) tends to produce mesh distortion, this paper enables simulation of AWJ cutting steel by adopting smoothed particle hydrodynamics (SPH) coupled FEM. Abrasive and water are modeled by SPH particles, target is modeled by FE. The distribution of two kinds of SPH particles is realized through modifying the keyword file and the impact velocity of SPH particles is obtained through computational fluid dynamics (CFD). Simulation results clearly show the change to kerf sectional shape. The relation curves between cutting depth and AWJ parameters, including pressure and transverse speed, are consistent with the experimental results, which proves the effectiveness of simulation method.
