Development of an SPH solver for incompressible fluids with an interface to pre- and post-processing software

The smoothed-particles hydrodynamics method (SPH) – in which the continuum is modeled as the arbitrary lattice of interacting particles/interpolation points – is often advantageous in modeling scenarios involving extreme deformations, fluid motion, and fragmentation over traditional mesh-based techniques. This study is focused on developing an SPH solver for simulating the motion of incompressible fluids, including the following tasks: •??Development of the interface with the pre- and post-processing software. •??Implementation of the SPH solver for Navier-Stokes equations in MATLAB. •??Identification of the most efficient technique for density calculation within the SPH solver through comparison of the “Summation Density” and the “Rate Density” algorithms. •??Validation of the developed SPH solver against three benchmark physical experiments: (i) dam break, (ii) dam break with a ramp, and (iii) fall of a droplet in water. •??Solving a practical problem using the developed SPH solver, involving a comparison of baffle designs to reduce sloshing in an automobile fuel tank.