Copyright approval and open-source release of Implicit SPH (ISPH) software package.

The ISPH package solves large-scale multi-physics mesoscale flow problems using implicit smoothed particle hydrodynamics methods. It relies on an incremental pressure correction scheme (effective for flows with moderately small Reynolds numbers) and differential operator renormalizations to achieve second-order accuracy in both time and space. ISPH, built on LAMMPS and Trilinos, provides a massively parallel scalable simulation capability for incompressible, multiphase flow coupled with electrostatics. In particular, the code has been used to study pore-scale flows in a complex geometry discretized with 165M particles, electroosmotic flow and diffusive mixing of solute in micro channels. Results from these researches are published in 3 journal papers thus far. The code is available at https://github.com/kyungjoo-kim/implicit-sph.

Visualization of 3D pore-scale flow in a cylinder packed with 6864 sphere beads using 165 million particles and 7680 CPUs (NERSC Edison, Cray XC30).
Visualization of 3D pore-scale flow in a cylinder packed with 6864 sphere beads using 165 million particles and 7680 CPUs (NERSC Edison, Cray XC30).
Contact
Kyungjoo Kim, kyukim@sandia.gov

August 1, 2017

News story url: https://www.sandia.gov/ccr/news/copyright-approval-and-open-source-release-of-implicit-sph-isph-software-package/