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SUMMARY:Solving Continuum Physics Equations with OpenFOAM - Hrvoje Jasak (
 Cambridge)
DTSTART:20230223T140000Z
DTEND:20230223T150000Z
UID:TALK196768@talks.cam.ac.uk
CONTACT:Jan Behrends
DESCRIPTION:While Continuum Physics may seem old-fashioned in the world of
  fundamental material science or high-energy physics\, simplicity of its a
 pproach may still bring benefits. Describing variables as continuous funct
 ions of space-time provides a way to overcome up-scaling issues in modelli
 ng.\n\nIncreasing computing power and established numerical modelling allo
 w us to expand the scope beyond the basics of structural analysis and flui
 d flow. Flexibility of software implementation is critical. One possible a
 nswer is _object orientation_. *OpenFOAM (Field Operation And Manipulation
 )* is an open source object-oriented numerical simulation library aimed at
  continuum physics modelling and will be described in this seminar.\n\nOpe
 nFOAM handles continuum models by mimicking partial differential equations
  in software. Polyhedral Finite Volume discretisation is implemented in op
 erator form (_e.g._ temporal derivatives\, gradient\, divergence\, source 
 and sink terms)\, and operators are combined to form equations. Efficiency
  and elegance in implementation is achieved through layered development an
 d extensive code re-use\, where various components (_e.g._ mesh handling\,
  field algebra and calculus\, discretisation\, linear algebra and solvers\
 , dynamic meshing _etc._) are developed and validated in isolation.\n\nAux
 iliary tools support the basic solvers\, providing pre- and post-processin
 g in- terfaces\, dynamic mesh handling\, real material properties\, massiv
 e parallelism\, Lagrangian particle model and other tools present in a mod
 ern CFD solver. The library is completed with a suite of physical models\,
  covering incompressible\, compressible\, multi-phase and free surface flu
 id flow\, a suite of 30 RANS and LES turbulence models\, combustion\, spra
 y and in-cylinder simulations\, structural analysis\, electromagnetics and
  fluid-structure interaction.\n\nToday\, OpenFOAM is a leading Open Source
  CFD tool\, rapidly expanding in the research community and among industri
 al users. The talk will be completed with examples of application of OpenF
 OAM on practical problems.
LOCATION:TCM Seminar Room
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