30/09/2020
The Human Resources Strategy for Researchers

High-order discretization of the MultiFluid Incompressible Navier-Stokes Equations for marine engineering applications with complex geometry at high Reynolds numbers

This job offer has expired


  • ORGANISATION/COMPANY
    CNRS
  • RESEARCH FIELD
    Chemistry
    Engineering
    Physics
  • RESEARCHER PROFILE
    First Stage Researcher (R1)
  • APPLICATION DEADLINE
    16/10/2020 23:59 - Europe/Brussels
  • LOCATION
    France › NANTES,NANTES
  • TYPE OF CONTRACT
    Temporary
  • JOB STATUS
    Full-time
  • HOURS PER WEEK
    35
  • OFFER STARTING DATE
    02/11/2020

OFFER DESCRIPTION

Cost effective DG implementations with hybridization will be explored. Different hybridization techniques including discontinuous mass flux HDG, continuous mass flux HDG and point-wise divergence free HDG will be developed and compared so the best option can be identified for two different targets. The first one is based on a moderate order of polynomial approximation but optimized for order of accuracy aiming at RANSE simulation, and the second one is based on high order polynomial approximation optimized for numerical stability aiming at hybrid RANSE/LES simulation. A hp adaptation can be used to combine both optimal approaches for practical application.

This post-doc position focuses on higher order discretization (3rd order and higher) of the Incompressible Navier-Stokes Equation for hydrodynamic application with complex geometry at high Reynolds including free-surface. It is performed in the framework of Discontinuous Galerkin (DG) approach implemented for unstructured hybrid mesh containing non-conforming tetrahedral, pyramidal, prism and hexahedral elements. Free-surface discontinuity will be handled with XDG. Morphing and moving mesh with high order curved elements needs to be taken into account. The target application is hydrodynamic engineering simulation with RANSE or hybrid RANSE/LES modelization.

The Laboratory for Research in Hydrodynamics, Energy and Atmospheric Environment (LHEEA) is composed of 140 persons and divided into 5 research teams and 2 experimental teams under the authority of the laboratory director. The LHEEA is managed by two CNRS and Ecole Centrale de Nantes trustees and also interacts a great deal with the subsidiary of École Centrale Innovation. This post-doc position will be integrated into the METHRIC team (Modeling turbulent flows Top Reynolds Incomprehensible and coupling)

More Information

Eligibility criteria

The candidate should have finished a PHD thesis devoted to DG/HDG. An excellent quality research work should be published in archival journal. An excellent level in DG/HDG/XDG discretization for Navier-Stokes equation for incompressible flow, computational programming with Fortran and Matlab, HPC computation with OpenMP and MPI parallelization, multi-grid acceleration technique, fluent in English (French speaking is a plus), are required.

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Required Research Experiences

  • RESEARCH FIELD
    Engineering
  • YEARS OF RESEARCH EXPERIENCE
    None
  • RESEARCH FIELD
    Chemistry
  • YEARS OF RESEARCH EXPERIENCE
    None
  • RESEARCH FIELD
    Physics
  • YEARS OF RESEARCH EXPERIENCE
    None

Offer Requirements

  • REQUIRED EDUCATION LEVEL
    Engineering: PhD or equivalent
    Chemistry: PhD or equivalent
    Physics: PhD or equivalent
  • REQUIRED LANGUAGES
    FRENCH: Basic
Work location(s)
1 position(s) available at
LABORATOIRE DE RECHERCHE EN HYDRODYNAMIQUE, ENERGÉTIQUE ET ENVIRONNEMENT ATMOSPHÉRIQUE
France
NANTES,NANTES

EURAXESS offer ID: 564263
Posting organisation offer ID: 17741

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