Real-Time Viscoelastic Fluid Simulation and Solid Melting Process Based on AVR-SPH

In this paper, we propose the artificial viscosity relaxation (AVR) model based on the SPH method to simulate the viscosity of the fluid. This model modifies the velocity of adjacent particle pairs by introducing a velocity relaxation amount, thus realizing the update of velocity and simulating the motion of fluid. We also apply the improved method to realize the complete process of the solid melting. And as the experiment results shows, the proposed method greatly simplifies the calculation and reduces the calculation amount, and it can reach higher frame rate in the case of the same number of particles.