Revision as of 09:11, 31 January 2020

ECFD workshop, 3rd edition, 2020

Sponsors

Participants

Flyer

• Flyer

Presentations

• Introduction workshop
• Introduction GENCI
• Roadmap AVBP (HPC)
• Roadmap YALES2

Project achievements

Project #1: Hackathon GENCI/ATOS/AMD/CERFACS on AVBP

C. Piechurski (GENCI), S. Jauré (ATOS), P.-A. Harraud (AMD), P. Mohanamuraly (CERFACS), G. Staffelbach (CERFACS)

Final presentation of project #1

Project #2: Hackathon GENCI/ATOS/AMD/CORIA on YALES2

C. Piechurski (GENCI), S. Jauré (ATOS), P.-A. Harraud (AMD), P. Mohanamuraly (CERFACS), G.Lartigue (CORIA), F. Gava (CORIA), P. Begou (LEGI)

Project #3: Implementation of a secondary atomization model in YALES2

Project #4: Application to combustion and lubrication applications

Project #5: Jet-in-crossflow par une méthode d’interface diffuse

Project #6: Accurate numerical predicti􏴇on of vorti􏴇cal flows using AMR

Project #7: Modélisation de parois pour la simulation des grandes échelles

Project #8: Implémentation du calcul de la distance à une interface liquide-gaz proche d’une paroi sur maillage non structuré 3D avec YALES2

Project #9: Remeshed particle method at high Schmidt and Reynolds number

S. Santoso (LJK), J.-B. Lagaert (Math Orsay), G.Balarac (LEGI)

We study the advection of a scalar function in turbulent flows with a multimesh method. The finite volume method is used to solve Navier-Stokes equations on an unstructured mesh (YALES2). The advection equation is solved with remeshed particle method on a cartesian mesh. In the context of parallel computing, we face a very unbalanced problem since a large number of particles are created in a very fine meshed zone. Our strategy to load-balance the problem is to give a weight to every element group which is equal to the density of particle.

Project #10: Remaillage dynamique pour la combustion turbulente prémélangée

Project #11: Multiphysics coupling for wind turbine wake modeling

Project #12: Stability of a semi-implicit compressible cavitation solver

Project #13: DNS of droplet dynamics and evaporation : comparison between structured and unstructured solvers

Project #14: Méthode d'ordre élevé

M. Bernard (LEGI), G. Lartigue (CORIA), G. Balarac (LEGI), V. Moureau (CORIA)

Project #15: Utilisation d’éléments finis du second ordre dans le SMS

T. Fabbri (LEGI), G. Lartigue (CORIA), G. Balarac (LEGI), V. Moureau (CORIA)

Project #16: Development of a RANS solver in YALES2

Project #17: COUPLING OF A FLUID PLASMA SOLVER WITH A LAGRANGIAN SOLVER FOR THE MODELING OF DUSTY

Project #18: L’Evaporo O Maıtre

Project #19: The Clone Wars

Project #20: Stiff complex fluid simulation with YALES2

Sam Whitmore, Yves Dubief, M2CE, University of Vermont

The objective was to simulate (1) ionized gases and (2) polymer solutions in flows using YALES2. Both problems are challenging owing to their stiff thermodynamics (1) or polymer dynamics (2). Significant gains were achieved in the implementation of the respective models thanks to the stiff integrator library CVODE. The plasma flow demonstrated an increase in time step of two orders of magnitude compared to previous implementation of the plasma chemistry in the variable density solver. Polymer models are notoriously prone to numerical instability. Again the use of CVODE showed equivalent if not superior stability of the solution at a fraction of the cost of commonly employed algorithms designed to address the stiffness of the problem.

Project #21: AVBP Dense Gases

Project #22: Numerical prediction of wind turbine wakes using AMR