Application of the ISPG Method in Various Manufacturing Processes Simulation

The Incompressible Smooth Particle Galerkin (ISPG) theory was proposed by the R&D team Computational and Multi-scale Mechanics Group (CMMG) at LSTC in 2017 [1]. It developed a new Incompressible Navier-Stokes solver to model free-surface Newtonian and Non-Newtonian fluid flow with surface tension and adhesion force. The Lagrangian particle method was employed to discretize the ISPG part to approximate the Navier-Stokes equation, coupled with surrounding rigid structures. The ISPG method is fully implicit, and in its dynamic mode, it simulates in real time fluid behaviors in many manufacturing processes. The ISPG’s robust, in-core, and smart mesh adaptivity allows fluid flow in complex geometry, accurately capturing and aligning the ISPG surfaces with the structure surfaces while keeping the model size down. It also allows for separation and fusion within the ISPG fluid. The ISPG advanced material models allow for the simulation of fluid behavior with various viscosities from liquid to near solid state.