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Method for simulating dynamic incompressible fluids using particle based spatial discretization and mass density constraints
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- Bodin, Kenneth (author)
- Umeå universitet,Högpresterande beräkningscentrum norr (HPC2N),UMIT
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- Lacoursière, Claude (author)
- Umeå universitet,Högpresterande beräkningscentrum norr (HPC2N)
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- Servin, Martin (author)
- Umeå universitet,Institutionen för fysik,UMIT
- (creator_code:org_t)
- 2009
- English.
- Patent (pop. science, debate, etc.)
Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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- pop (subject category)
- pat (subject category)
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