OpenFOAM® for CFD engineering Our...

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OpenFOAM® for CFD engineeringOur experience

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Renan HILBERT, Ph.D.rhilbert@y-plus.fr

1ere journée des utilisateurs OpenFOAM®FOAM-U , Rouen, May 18th 2016

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Our goal: contribute to the use of open source

and free softwares in research and industry

more than 10 years experience in numerical simulations and CFD

Cost-killingsimulations

Adequatenumerical tools

User’s point of view

Migration/support open-source

Training Developments Engineering

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Common ideas about open-source tools

C’est uniquement pour les geeks, sous Linux Si je développe un modèle, je vais être obligé

de le distribuer gratuitement !

Il n’y a pas de documentation, ni de support

Les codes ne sont pas validés

On a mis un stagiaire dessus, cela n’a rien donné…

On ne peut pas faire de CAO, ni de maillage !

Les formats sont incompatibles avec les logiciels commerciaux !

Au final, ça revient plus cher que de payer une licence pour

avoir du support…

Il n’y a pas d’interface graphique, il faut tout coder !

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Complete workflow with open-source softwares

HELYX-OS

CFMESH

PYTHON

SHELL

QT

RUBY

SALOME

FREECAD

SKETCHUP

PYTHONOCC

FORTRAN

C

C++

SALOMENETGEN

BLOCKMESH

SNAPPYHEXMESH

ENGRID

CODESATURNE

CODE ASTER

OPENFOAM

SYRTHES

SU2

PYTHON/MATPLOTLIB

AWK

GNUPLOT

PARAVIEW DAKOTA

WORKFLOW CADUSER

FUNCTIONSMESHING SOLVERS POST-PRO. VISU OPTIM

VISIT

BLENDER

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Numerical wind tunnel for buildings

Wind load on Rennes railway station Wind comfort on Montpellier’s stadium (project)

Photovoltaic shade panels structural design Montpellier’s railway station

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Pollutant dispersion

Pedestrian wind comfort Wind load on structures

Ventilation

Building and civil engineering applications

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Industrial multi-physics simulations

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Structured, cartesian, tetra, poly

Realistic & complex geometries

Open-source meshing with blockMesh, snappyHexMesh, cfMesh

Multi-region

Dynamic meshes

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Oil & Gas

CONFIDENTIAL

• Sloshing Tank

• Dynamic meshing

• Wall pressure

• Test case with water

• Extension with LNG properties

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• Therma performance for tubular burntgas/water heat exchanger

• C++ developmentsCoupling between a 1D model for wtaerand the gas phaseCondesing effect on heat transfers

Heat exchanger

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• Benchmark OpenFOAM®/Fluent

• Non-premixed methane/air flame

Combustion / burners

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Coupled heat transfers

• Multi-region coupled heat transfers(conduction, convection) with a porouszone

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Using open-source sofwtares : pros & cons (our experience)

Select the right toolsAccording to the hardware and users

Integration in your workflows

Skill improvement timeLearn to use the softwares

Adapt your methodologies

No dedicated supportWhere can I find documentation ?

Who can I contact in case of a problem ?

Free licensesCost-killing

Enhance calculation capabilitues

Acces to « massive HPC »

ModularityDepending on the user and its needs

All or part of the simulation workflow

Flexibility/independencyOpen source code

Always available

Keep your own developments

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We propose a step-by-step process

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yPlus48 rue Saint Lambert 75015 Paris

http://y-plus.fr

Fabien Bidaud Renan Hilbert, Ph.D.

Commercial manager Technical manager & training

fbidaud.ext@y-plus.fr rhilbert@y-plus.fr

+33 (0)6.87.79.16.93 +33 (0)6.89.39.53.05

Contact us

Migration/support open-source

Formations Développements EtudesR&D

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