©2026 ANSYS, Inc.
9
IISPH Promotion to Main Feature
After months of extensive testing, the
Implicit Incompressible SPH solver had
its Beta flag removed.
It has also become the default solver
for SPH cases (however, users are still
able to use the Weakly Compressible
SPH solver).
IISPH is more efficient than the
WCSPH solver, since its timestep is
usually up to one order of magnitude
higher than the WCSPH's timestep,
without losing accuracy.
