OpenPDAC

 An offline Eulerian-Lagrangian model for the simulation of volcanic fluids. The model solves the conservation equations of mass, momentum and energy for a Eulerian-Eulerian compressible multiphase mixture of gasses and fine (up to mm size) particles, and the Lagrangian transport equations for coarser solid particles. The solver is based on the equations of the PDAC model, ported and optimized on the open-source OpenFOAM C++ toolbox for Computational Fluid Dynamics (CFD).

• Used by CoE: ChEESE
• Main uses: Simulation of explosive eruption phenomena, including blasts, ash dispersal, pyroclastic flows, ballistic ejection