PARALLEL IMPLEMENTATION OF A GEOMETRICAL RECONSTRUCTION INTERFACE ALGORITHM OVER OPENFOAM(R)

NIGRO NORBERTO; PAIRETTI CESAR; MARQUEZ DAMIAN, SANTIAGO

La Plata

Congreso; ENIEF 2017; 2017

Universidad Nacional de La Plata

Even when the Piecewise-Linear Interface Calculation algorithm is a well established tech-nique for interphase reconstruction related to the Volume of Fluid method and is implemented in sev-eral privative codes for arbitrary meshes, no freely-distributed version is available to the date for theOpenFOAM(R) libraries suite. This works presents implementation details of this technique over Open-FOAM(R) to be used on parallel platforms. Much of them are related with the underlying numericsand the fundamental requirement of local and global conservativeness. Two main aspects are covered inthis work: the computation of face fluxes by intersection of swept volumes and interface cells and thecalculation of curvatures in each cell. While the first aspect does not present much difficulties, curva-tures computation results in an interesting case in how to manage a problem not well suited for messagepassing parallelization.