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Method for simulating dynamic incompressible fluids using particle based spatial discretization and mass density constraints
Umeå University, Faculty of Science and Technology, High Performance Computing Center North (HPC2N). (UMIT)
Umeå University, Faculty of Science and Technology, High Performance Computing Center North (HPC2N).
Umeå University, Faculty of Science and Technology, Department of Physics. (UMIT)
2009 (English)Patent (Other (popular science, discussion, etc.))
Abstract [en]

Disclosed is a method of simulating dynamic fluids comprising a set of pseudo particles usedto represent physical quantities of the fluid, a fluid density computed from a weightedaverage over the pseudo particle, and a density constraint on the fluid density constraining itto be incompressible with the reference density of a real physical fluid that is modeled. Theconstraint stabilization forces of the density constraint govern the dynamics of the pseudoparticles and the simulated fluid. The method comprises a combined time stepping andconstraint stabilization and relaxation method that provides global conservation of physicalsymmetries and therefore robust physical and numerical stability under large constraintviolation, and substantial improvement in efficiency over other known methods.

Place, publisher, year, edition, pages
2009.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-33651OAI: oai:DiVA.org:umu-33651DiVA: diva2:316244
Patent
61/183566
Available from: 2010-04-30 Created: 2010-04-30 Last updated: 2013-08-12Bibliographically approved

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Bodin, KennethLacoursière, ClaudeServin, Martin
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