Particle tracking in unstructured, arbitrary polyhedral meshes for use in CFD and molecular dynamics

Many classes of engineering fluid dynamics simulation require the tracking of discrete elements, for example, dispersed particles in a solvent, a spray of diesel injected into an internal combustion engine, or the dynamics of granular materials. Realistic simulations often require complex, 3D geomet...

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Vydáno v:	Communications in numerical methods in engineering Ročník 25; číslo 3; s. 263 - 273
Hlavní autoři:	Macpherson, Graham B., Nordin, Niklas, Weller, Henry G.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Chichester, UK John Wiley & Sons, Ltd 01.03.2009 Wiley
Témata:	Applied sciences Cross-disciplinary physics: materials science; rheology droplet spray Engines and turbines Exact sciences and technology Fluid dynamics Fundamental areas of phenomenology (including applications) General theory Granular solids Internal combustion engines: gazoline engine, diesel engines, etc Material form Mechanical engineering. Machine design molecular dynamics OpenFOAM particle tracking Physics Rheology Solid mechanics Structural and continuum mechanics unstructured mesh Tracking Particle motion Molecular dynamics Overlap Discrete element method Nanostructures Parallel algorithms Defects droplet spray Droplets Modelling Dynamic model Computer aided design Mesh generation OpenFOAM Unstructured mesh Fluid dynamics Computational fluid dynamics particle tracking Particle suspension Polyhedron Granular materials Internal combustion engines Holes Parallel computation
ISSN:	1069-8299, 1099-0887
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Popis
Shrnutí:	Many classes of engineering fluid dynamics simulation require the tracking of discrete elements, for example, dispersed particles in a solvent, a spray of diesel injected into an internal combustion engine, or the dynamics of granular materials. Realistic simulations often require complex, 3D geometries, generated from CAD models and meshed with unstructured polyhedra, which may be deforming, in motion or spatially decomposed for parallel computation. We present an algorithm to track the motion of particles in such geometries which is designed to be computationally efficient and robust in imperfect 3D meshes where small holes or overlaps are present. It has been applied to a wide range of engineering problems ranging from injected fuel sprays in internal combustion engines to molecular dynamics modelling of nanoscale flows. Copyright © 2008 John Wiley & Sons, Ltd.
Bibliografie:	James Weir Foundation Miller Foundation istex:C1648E22C18967A012BE861173CD06A3B6748487 ArticleID:CNM1128 ark:/67375/WNG-BRG8VJV1-S ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1069-8299 1099-0887
DOI:	10.1002/cnm.1128