code saturne user meeting 07 may 2019, version 1
TRANSCRIPT
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FLUID SOLUTIONS www.renuda.com
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2019 Code_Saturne User Meeting
07 May 2019, Version 1.0
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Cleaning Up with Code_Saturne and SALOMER&D and Clean Tech CFD applications
Nicolas Tonello
Director
Renuda, 329-339 Putney Bridge Road, London, SW15 2PG, UK
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For further information, please contact:
Contact
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1. Renuda at a glance
2. R&D projects
3. Clean Tech applications
4. Conclusions and future work
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Outline
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1. Renuda at a glance
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Renuda
• Blue Chip Clients
• Applications from single phase pipe flow to turbomachinery, multiphase flow, coupled heat transfer, mechanical calculations
• Industries: transport, automotive, processing, nuclear, power generation, civil engineering
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Software and Hardware Tools
• Commercial software
• Open source software chains
CAD: SALOME
Mesh: SALOME, incl. Distene’s MeshGems, and snappyHexMesh
CFD: Code_Saturne
Analysis: Paraview
• Mix of local and remote computing
Local multi-core PCs
Access to HPC on hundreds of compute cores at the Hartree Centre,
UK
Constelcom’s ConstellationTM platform for easy access to HPC
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Constellation
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Research Partnership And Collaborations
• Research and development is very important
• Collaborative research relationship with EDF R&D on the development of Code_Saturne
• Collaboration with the SALOME teams:
Development of module for specialised steam turbine code
• Part of the UK Consortium on Turbulent Reactive Flow
SiG on Sprays
SiG on Combustion
• NAFEMS CFD Working Group
• Collaboration with different universities and research labs
University of Manchester
Daresbury Laboratory (Science and Technology Facilities Council) –HPC research and application
University of Edinburgh (software parallelisation)
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2. R&D Projects
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R&D
• Continued collaborative efforts with EDF R&D to develop Code_Saturne
• Turbulence on tetrahedral meshes
From classic cases to validation with experimental setups
Numerics
Models
• Multi-physics
Cooling Tower module validation
Merging with the Atmospheric module
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PWR Nuclear Fuel Assemblies
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Credit:ASN
https://www.asn.fr/Lexique/A
/Assemblage-combustible
Credit:EDF
https://www.edf.fr/groupe-edf/nos-energies/carte-de-nos-
implantations-industrielles-en-france/centrale-nucleaire-
du-tricastin/actualites/un-assemblage-bloque-une-surete-
toujours-assuree
Credit: World Nuclear Association
http://www.world-nuclear.org/information-library/nuclear-fuel-cycle/conversion-enrichment-and-
fabrication/fuel-fabrication.aspx
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Deformation
• Slide reproduced from the presentation: “Les Gestions des coeurs et les perspectives”, Nicolas Waeckel(EDF-SEPTEN), Convention annuelle de la SFEN, 11-12 mars 2009
• https://inis.iaea.org/collection/NCLCollectionStore/_Public/42/026/42026961.pdf
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Group_1_W
Group_1_a
Group_1_b
Group_2_W
Group_2_a
Group_2_b
Group_3_W
Group_3_a
Group_3_b
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• The main brick is further decomposed in elements which can be used
later to represent the different configurations desired
Volume sub-decomposition
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Deformation Scenarios
• Zoom on the top part to show the displacement and contact
Reduced gap Full contactNo deformation
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Utilising Code_Saturne for Meshing
• Code_Saturne is applied to the complete mesh in order to create both
The wall layers
The extrusions to represent the inlets and outlets
• The entire meshing process is parametrised
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Final Mesh
• Illustration of the final, extruded mesh for the full-contact
configuration
Outlet_Z (outlet for ¼ of the domain)
Inlet_1Inlet_2
Inlet_3
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Process validation: CFD
• Verification over a few tens of iterations with Code_Saturne
Inlet_1Inlet_2
Inlet_3
Outlet
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VoF – Superficial force
• Implementation of a model to account for interfacial surface tension
effects in the VoF algorithm
Surface curvature – convolution method for general meshes
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Hexahedra
l m
esh
Tetr
ahedra
l m
esh
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VoF + Lagrangian
• Validation with clogging - developed by CS team
VoF + Lagrangian + Clogging
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VoF + Lagrangian
• With a different density ratio, the particles clog up the entire height
of the grille, forcing the flow to spill over the grille
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3. Clean Tech Projects
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CleanTech
• Optimisation of resources and growing concerns for the environment
are pushing the utilisation of digital modelling such as CFD in
industries which might have been relying on more traditional
methods in the past
• Examples abound, from the Mining industry to Oil and Gas,
Manufacturing and Waste water treatment
• Here, we present as illustrations two projects in which CFD has
been at the core of the design and analysis
Water treatment plant in Ivory Coast
Plywood manufacturing
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Water Treatment plant
• Plant planned in Ivory Coast to supply drinking water
• Treat water from the river Mé to strengthen the supply of drinking
water to the city of Abidjan
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Challenge: Limit the amount of
pre-rotation upstream of the
pumps
Credit: BESIX Group
https://press.besix.com/besix-in-ivory-coast-civil-engineering-works-for-a-drinking-water-
treatment-plant
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Raw Water Collection
• Analysis of the design of the raw water collection station
• Series of calculations and analysis showing first large recirculations,
then redesign, adding structures to distribute the flow more evenly
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Raw Water Collection
• Analysis of the design of the raw water collection station
• Series of calculations and analysis showing first large recirculations,
then redesign, adding structures to distribute the flow more evenly
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Raw Water Collection – Design 2
• Addition of a network of columns to diffuse the flow
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Comparison
• The columns contribute to diffusing the flow sideways and the pre-
rotation in the pump chambers is significantly reduced
Initial design With the added columns
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Treated Water Pumping Station
• Similarly, for the treated water pumping collection pre-rotation in the
pump chambers must be limited
pt10
pt2
pt11pt12
pt13pt14
pt15pt1
pt9pt8
pt7pt6
pt5
pt3
pt4
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Treated Water Pumping Station
• Go through a series of designs to limit the vortices under the pumps
Initial design
Third design
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Treated Water Pumping Station
• Extrusion and wall layers all built in Code_Saturne
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Wood Particles Removal
• Siempelkamp Group is a very large manufacturer:
Siempelkamp machine and plant engineering: wood-based panels,
metal forming, composite and rubber
Siempelkamp foundry: castings
Siempelkamp NIS Ingenieurgesellschaft mbH: components and
services for the Nuclear industry
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Scrubber
• Filtration system to clean the
ventilation air
Extract the left-over wood particles
• CFD modelling to analyse the flow
field and improve the system if
required
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Inlet
Outlet
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Lagrangian Two-Way Modelling
• Series of CFD calculations indicates a higher concentration of
particles in the central part of the system
System augmented with downward water sprays
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Wood Particles Removal
• Significant increase of robustness by the Code_Saturne team to
tolerate particle interactions with deformed boundary faces
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3. Conclusions and Future Work
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Conclusions and Future Work
• Code_Saturne and SALOME form a very powerful combination, which Renuda is applying in very different industrial settings and purposes. Renuda is also participating in its development
• Through the availability of multi-physics models and HPC, Code_Saturne can be applied to problems which are further away from the Nuclear industry
• Usability features are also essential in order for the eco system to be adopted by an increasing number of users. For example, extrusion layers and restarts on different meshes are very useful
• Digitalisation is of interest to all industries, pursuing similar goals of efficiency, optimisation and innovation
• We look forward to participating in the continued development of Code_Saturne to address upcoming challenges, not just machines or systems but human and societal ones
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Societal Challenges
• Can Code_Saturne help with Brexit?
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Societal Challenges
• Can Code_Saturne help with Brexit?
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• Environment
• Fires
• Physics and speed
Grand Challenges
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The Guardian
Source: Financial Times
https://www.ft.com/content/9c2b9d92-
a45b-11e8-8ecf-a7ae1beff35b
Source: Evening Standard
https://www.standard.co.uk/news/london/revealed-the-
dossier-of-deadly-failures-at-grenfell-tower-a3814871.html