What is SPH Adaptive Size in Ansys FreeFlow?

SPH Adaptive Size is a capability in Ansys FreeFlow that automatically adjusts the size (resolution) of SPH elements during a simulation. Instead of using the same element size everywhere, you can define where higher accuracy is needed, and then the SPH solver will dynamically refine or coarsen SPH elements.

Instead of uniformly refining the entire fluid domain, the SPH Adaptive Sizing Method allows higher resolution to be applied only in regions of interest. By refining SPH elements locally, while keeping a coarser resolution elsewhere, the method reduces the total number of SPH elements and, consequently, lowers computational cost and simulation time without compromising accuracy where it matters most.

Ansys FreeFlow™ smoothed-particle hydrodynamics (SPH) simulation software

Janaina Oliveira

Technical/Product Publications