TY - JOUR
T1 - 3D simulation of fluid-particle interactions with the number of particles reaching 100
AU - Johnson, A. A.
AU - Tezduyar, T. E.
N1 - Funding Information:
This researchw ass ponsoredb y ARPA under NIST contract6 ONANB2D1272,a nd by the Army High Performance Computing ResearchC enter under the auspiceso f the Departmento f the Army, Army Research Laboratory cooperativea greementn umber DAAH04-952-00031contractn umber DAAH04-95-C-0008, the content of which does not necessarily reflect the position or the policy of the government,a nd no official endorsements hould be inferred. CRAY C90 time was provided in part by the University of Minnesota SupercomputerIn stitute.
PY - 1997/6/30
Y1 - 1997/6/30
N2 - A high performance computing research tool has been developed for 3D simulation of fluid-particle interactions with the number of particles reaching 100. The tool is based on a stabilized space-time finite element formulation for moving boundaries and interfaces and parallel computing. Other components of this tool include: fast automatic mesh generation with structured layers of elements around the particles and unstructured meshes elsewhere; an automatic mesh moving method combined with remeshing as needed; accurate and efficient projection of the solution between the old and new meshes after each remesh; surface mesh refinement as two spheres or a sphere and the tube wall get close; and multi-platform computing. We apply this tool to the simulation of two cases involving 101 spheres falling in a liquid-filled tube. In both cases the initial distribution of the spheres in the tube is random. In the first simulation the size of the spheres is also random, whereas in the second case it is uniform. We demonstrate that the tool developed can be used for simulation of this class of problems with computing durations kept at acceptable levels.
AB - A high performance computing research tool has been developed for 3D simulation of fluid-particle interactions with the number of particles reaching 100. The tool is based on a stabilized space-time finite element formulation for moving boundaries and interfaces and parallel computing. Other components of this tool include: fast automatic mesh generation with structured layers of elements around the particles and unstructured meshes elsewhere; an automatic mesh moving method combined with remeshing as needed; accurate and efficient projection of the solution between the old and new meshes after each remesh; surface mesh refinement as two spheres or a sphere and the tube wall get close; and multi-platform computing. We apply this tool to the simulation of two cases involving 101 spheres falling in a liquid-filled tube. In both cases the initial distribution of the spheres in the tube is random. In the first simulation the size of the spheres is also random, whereas in the second case it is uniform. We demonstrate that the tool developed can be used for simulation of this class of problems with computing durations kept at acceptable levels.
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U2 - 10.1016/S0045-7825(96)01223-6
DO - 10.1016/S0045-7825(96)01223-6
M3 - Article
AN - SCOPUS:0031171755
SN - 0045-7825
VL - 145
SP - 301
EP - 321
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
IS - 3-4
ER -