PeliGRIFF swMATH ID: 7405 Software Authors: Wachs, Anthony Description: PeliGRIFF, a parallel DEM-DLM/FD direct numerical simulation tool for 3D particulate flows The problem of particulate flows at moderate to high concentration and finite Reynolds number is addressed by parallel direct numerical simulation. The present contribution is an extension of the work published in [the author, Comput. Fluids 38, No. 8, 1608–1628 (2009; Zbl 1242.76142)], where systems of moderate size in a 2D geometry were examined. At the numerical level, the suggested method is inspired by the framework established by {it R. Glowinski} et al. [Int. J. Multiphase Flow 25, No. 5, 755–794 (1999; Zbl 1137.76592)] in the sense that their distributed Lagrange multiplier/fictitious domain (DLM/FD) formulation and their operator-splitting idea are employed. In contrast, particle collisions are handled by an efficient discrete element method (DEM) granular solver, which allows one to consider both smoothly (sphere) and non-smoothly (angular polyhedron) shaped particles. From a computational viewpoint, a basic though efficient strategy has been developed to implement the DLM/FD method in a domain decomposition/distributed fashion. To achieve this goal, the serial code, GRIFF (grains in fluid flow; see [the author, loc. cit.]) is upgraded to fully MPI capabilities. The new code, PeliGRIFF (parallel efficient library for grains in fluid flow) is developed under the framework of the fully MPI open-source platform PELICANS. The parallel computing capabilities of PeliGRIFF offer new perspectives in the study of particulate flows and indeed increase the number of particles usually simulated in the literature. Solutions to address new issues raised by the parallelization of the DLM/FD method and assess the scalable properties of the code are proposed. Results on the 2D/3D sedimentation of a significant collection of isometric polygonal/polyhedral particles in a Newtonian fluid with collisions are presented as a validation test and an illustration of the class of particulate flows PeliGRIFF is able to investigate. Homepage: http://projet.ifpen.fr/Projet/jcms/xnt_11465/peligriff-parallel-efficient-libray-for-grains-in-fluid-flows Dependencies: PELICANS Keywords: discrete element method; distributed Lagrange multiplier/fictitious domain method; parallel computing; particulate flow; polygonal/polyhedral shape; sedimentation Related Software: Proteus; Gerris; PELICANS; Xper; LMGC90; FEATFLOW; CMPGRD; Ogen; OBBTree; LIGGGHTS; PHYSALIS; GRIFF Cited in: 7 Publications Further Publications: http://projet.ifpen.fr/Projet/jcms/xnt_64595/peligriff-publications Standard Articles 1 Publication describing the Software, including 1 Publication in zbMATH Year PeliGRIFF, a parallel DEM-DLM/FD direct numerical simulation tool for 3D particulate flows. Zbl 1269.76088Wachs, Anthony 2011 all top 5 Cited by 16 Authors 4 Wachs, Anthony 1 Babik, Fabrice 1 Balaras, Elias 1 Dbouk, T. 1 Ghigo, Arthur R. 1 Hammouti, Abdelkader 1 Jiang, Maoqiang 1 Li, Jing 1 Liu, Zhaohui 1 Mozul, R. 1 Popinet, Stéphane 1 Rahmani, Mona 1 Selçuk, Can 1 Vanella, Marcos 1 Vinay, Guillaume 1 Wang, Shizhao Cited in 5 Serials 2 Computers and Fluids 2 Journal of Computational Physics 1 Acta Mechanica 1 Computer Methods in Applied Mechanics and Engineering 1 Journal of Engineering Mathematics Cited in 4 Fields 7 Fluid mechanics (76-XX) 4 Numerical analysis (65-XX) 1 Mechanics of particles and systems (70-XX) 1 Mechanics of deformable solids (74-XX) Citations by Year