Parallel programming with MPI
Towards the ultimate conservative difference scheme V. A second-order sequel to Godunov's method
Journal of Computational Physics - Special issue: commenoration of the 30th anniversary
A unified method for computing incompressible and compressible flows in boundary-fitted coordinates
Journal of Computational Physics
New Parallel SOR Method by Domain Partitioning
SIAM Journal on Scientific Computing
Combined immmersed-boundary finite-difference methods for three-dimensional complex flow simulations
Journal of Computational Physics
High Performance Computing
An immersed-boundary finite-volume method for simulations of flow in complex geometries
Journal of Computational Physics
A pressure-based method for turbulent cavitating flow computations
Journal of Computational Physics
Computation of multiphase mixture flows with compressibility effects
Journal of Computational Physics
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A new parallel code for the simulation of the transient, 3D dispersal of volcanic particles in the atmosphere is presented. The model equations, describing the multiphase flow dynamics of gas and solid pyroclasts ejected from the volcanic vent during explosive eruptions, are solved by a finite-volume discretization scheme and a pressure-based iterative non-linear solver suited to compressible multiphase flows. The solution of the multiphase equation set is computationally so demanding that the simulation of the transient 3D dynamics of eruptive columns would not be cost-effective on a single workstation. The new code has been parallelized by adopting an ad hoc domain partitioning scheme that enforces the load balancing in the presence of a large number of topographic blocking-cells. An optimized communication layer has been built over the Message-Passing Interface. It is shown that the present code has a remarkable efficiency on several high-performance platforms and makes it possible, for the first time, to simulate fully 3D eruptive scenarios on realistic volcano topography.