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A semi-analytical approach for SPH modeling of solid boundaries

pubblicazioni - Articolo

A semi-analytical approach for SPH modeling of solid boundaries

Agate Giordano*, Roberto Guandalini*, Andrea Maffio*, Sauro Manenti**, Antonio Di Monaco**, Stefano Sibilla**, Mario Gallati** 4th SPHERIC Workshop Nantes (Francia), 27-29 Maggio 2009 * ERSE SPA ** UNIVERSITÀ DI PAVIA A general semi-analytic approach for modelling solid boundaries in the SPH method is presented: they are considered as a material continuum with suitable distribution of velocity and pressure. Boundary contribution to each term of the SPH mass and momentum balance equations can be expressed in terms of a suitable integral extended to the volume intersection of the influence sphere of the particle with the boundary surface. Analytical details with reference to a slightly compressible viscous Newtonian fluid in three-dimensional geometry are given.

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