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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Veröffentlicht in:Communications in numerical methods in engineering Jg. 25; H. 3; S. 263 - 273
Hauptverfasser: Macpherson, Graham B., Nordin, Niklas, Weller, Henry G.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Chichester, UK John Wiley & Sons, Ltd 01.03.2009
Wiley
Schlagworte:
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
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung: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.
Bibliographie: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