Enhancing LAMMPS Capabilities

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Abstraction Layer II: “Transport Equations”MotivationThere is another recurring task: Solving an ODE for each particlefor a quantity, based on a flux and a sourceEg E.g. solveforheat transfer, moisture, evolution of surface dust...mpcp•Q pi −pjdTdtp,ipi••− +Q pi , source14243heat generationheat conduction due to sources,bycontacts e.g.reactions= ∑Q pi pjcontacts i − j14243 44 kpikpj/= Δk + kpj( A ) 1 2contact , i − jTpi−pjSolution: A new fix transportequation/scalar•Every model can request a scalar transport equation to be solved• The transportequation makes use of multiple fixes of type property/peratomChristian Doppler Laboratory on Particulate Flow Modelling www.particulate-flow.at 34
Abstraction Layer II: “Transport Equations”MotivationThere is another recurring task: Solving an ODE for each particlefor a quantity, based on a flux and a sourceEg E.g. solveforheat transfer, moisture, evolution of surface dust...mpcp•Q pi −pjdTdtp,ipi••− +Q pi , source14243heat generationheat conduction due to sources,bycontacts e.g.reactions= ∑Q pi pjcontacts i − j14243 44 kpikpj/= Δk + kpj( A ) 1 2contact , i − jTpi−pjSolution: A new fix transportequation/scalar•Every model can request a scalar transport equation to be solved• The transportequation makes use of multiple fixes of type property/peratomChristian Doppler Laboratory on Particulate Flow Modelling www.particulate-flow.at 35
Page 1 and 2: Enhancing LAMMPS CapabilitiesGranul
Page 3 and 4: Open Source DEM and CFD-DEMOutline1
Page 5 and 6: About UsMission StatementCD Lab Par
Page 7 and 8: The LIGGGHTS+CFDEM CodesCooperation
Page 9 and 10: II. Models
Page 11: LIGGGHTS Models - ReleasedHertz-Min
Page 14 and 15: Lattice Beam ModelDynamic fracture
Page 16 and 17: LIGGGHTS ModelsCapturing non-spheri
Page 18 and 19: LIGGGHTS ModelsCapturing non-unifor
Page 20 and 21: CAD InteroperabilityImporting a Mes
Page 22 and 23: CAD InteroperabilityGenerating a Pa
Page 24 and 25: IV. Features and Coding Concepts
Page 26 and 27: Dynamic Load-BalancingSilo Test Cas
Page 28 and 29: Abstraction Layer I: Per-Particle P
Page 36 and 37: V. Coupling to Continuum Methods
Page 39 and 40: Coupling to Continuum MethodsHow do
Page 41 and 42: Coupling to Continuum MethodsMotiva
Page 43 and 44: Coupling to Continuum MethodsUnreso
Page 46 and 47: Application ExampleSoil Sampling wi
Page 48 and 49: Industrial ApplicationReduction of
Page 50: Thank you for your attention!Questi

Enhancing LAMMPS Capabilities

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