PHD position in computational fluid dynamics. Highly compressible full-scale industrial flows simulation using Lattice-Boltzmann and Immersed Boundary methods
27 Feb 2024
Job Information
- Organisation/Company
Aix-Marseille Université- Research Field
Physics » Applied physics
Physics » Computational physics
Engineering » Industrial engineering
Engineering » Other
Physics » Other- Researcher Profile
First Stage Researcher (R1)- Country
France- Application Deadline
31 Mar 2024 - 21:59 (UTC)- Type of Contract
Temporary- Job Status
Full-time- Hours Per Week
35- Is the job funded through the EU Research Framework Programme?
Not funded by an EU programme- Is the Job related to staff position within a Research Infrastructure?
No
Offer Description
RESEARCHER PROFILE: PhD / R1: First stage Researcher
RESEARCH FIELD(S)1: Engineering. Computer sciences
MAIN SUB RESEARCH FIELD OR DISCIPLINES1: Fluid mechanics
JOB /OFFER DESCRIPTION
A PhD position is open at the M2P2 laboratory (Aix-Marseille Univ, CNRS, Ecole Centrale) in Marseilles France. It is part of the LIBERTY industrial chair (Lattice-Boltzmann Extended Research on Turbomachinery and hYdrogen) recently granted by the French national research agency (ANR) and three worldwide industrial companies AIRBUS, SAFRAN and Fives-Pillard to deal with the development of high-fidelity Lattice Boltzmann Methods (LBM) simulations of multi-species and multi-physics flows in realistic industrial applications such as aerodynamics, aeroacoustics, aerothermal and reacting flows.
Fluid dynamics simulations play now a crucial role in the energy and transport industry with the ambition to predict accurately quantities of engineering interest for turbulent flows developing inside or over full-scale real-world objects. The key of the success is the development of high-fidelity simulations based on accurate and efficient discretization methods and algorithms working in the HPC framework. This is required by the several millions of degrees of freedom induced by the very large range of spatio-temporal scales as well as by the complex geometry to discretize.
The intrinsic properties of the Lattice Boltzman method coupled with the immersed boundary method presents a great potential to predict complex flows in realistic conditions. This is already assessed by successful simulations carried out by the M2P2 team for full-scale industrial configurations. However, some key issues have been clearly identified to push forward the reliability and the accuracy of such simulations with LBM and immersed boundary method, particularly for flows with compressibility effects that can be induced by both large temperature or pressure variations. The turbulence, the near-wall flows along complex geometries (not aligned on the grid), as well as the presence of steep gradients, flow discontinuities or even shocks raise several numerical and physical modelling issues which will be addressed in this PhD project.
In this context, this three-years PhD position will focus on the modelling of solid wall and turbulent boundary layer, which is a key issue to accurately predict aerodynamic forces and heat transfer. The PhD will aim at developing improved boundary conditions at solid walls with an increased physical accuracy and numerical stability. If an efficient mass conservation scheme was recently proposed by the team for isothermal flows (Xu et al. PoF 2022), more work is required for compressible flows, especially when discontinuities are present close to the wall (e.g. attached shock or flame).
A part of the work will be also devoted to heat flux prediction and an accurate estimation of the Nusselt number distribution, dealing both with the modelling of turbulent heat flux and the numerical improvements to damp the spurious wiggles on the fluid quantities along complex geometries non-aligned with the mesh.
Due to the strong unsteadiness expected in the target applications of the project, the turbulence modelling framework will be based on Large Eddy Simulation (WMLES) and the blending RANS/LES strategy based on a simplified constrained Reynolds stress approach with wall functions will be extended to compressible flows with turbulent heat flux constraint.
TYPE OF CONTRACT: TEMPORARY / JOB STATUS: FULL TIME / HOURS PER WEEK 35
APPLICATION DEADLINE: 31/03/2024 00:00
ENVISAGED STARTING DATE: May 1st 2024
ENVISAGED DURATION: 36 months
JOB NOT FUNDED THROUGH AN EU RESEARCH FRAMEWORK PROGRAMME
WORK LOCATION(S): M2P2 lab., Aix-Marseille Université, CNRS, École Centrale Méditerranée, Marseille France
WHAT WE OFFER:
Salary ~ 42keuros/year. Collaborations with three worldwide industrial companies AIRBUS, SAFRAN and Fives-Pillard
Additional information: The Euraxess Center of Aix-Marseille Université informs foreign visiting professors, researchers, postdoc and PhD candidates about the administrative steps to be undertaken prior to arrival at AMU and the various practical formalities to be completed once in France: visas and entry requirements, insurance, help finding accommodation, support in opening a bank account, etc. More information on AMU EURAXESS Portal
QUALIFICATIONS, REQUIRED RESEARCH FIELDS, REQUIRED EDUCATION LEVEL, PROFESSIONAL SKILLS, OTHER RESEARCH REQUIREMENTS (years of research experience
The candidate will have a solid background in computational fluid dynamics and fluid mechanics. The numerical developments required in the PhD will involve team-working skills to interact frequently with other students working on the same numerical code, software engineers, associated industrials and supervisors.
Soft skills: English required. Teamwork
REQUESTED DOCUMENTS OF APPLICATION, ELIGIBILITY CRITERIA, SELECTION PROCESS
Master degree or equivalent
HOW TO APPLY
E-mail: [email protected]
Website: https://www.m2p2.fr/annuaire-304/
Requirements
- Research Field
- Physics
- Years of Research Experience
- 1 - 4
- Research Field
- Physics
- Years of Research Experience
- 1 - 4
- Research Field
- Engineering
- Years of Research Experience
- 1 - 4
- Research Field
- Engineering
- Years of Research Experience
- 1 - 4
- Research Field
- Physics
- Years of Research Experience
- 1 - 4
Additional Information
- Website for additional job details
https://academicpositions.com
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- Aix-Marseille Université
- Country
- France
- City
- Marseille
- Postal Code
- 13284
- Street
- Jardin du Pharo 58, bd Charles Livon
Where to apply
- Website
https://academicpositions.com/ad/aix-marseille-universite/2024/phd-position-in-…
Contact
- City
Marseille- Website
https://www.univ-amu.fr/- Postal Code
13284
STATUS: EXPIRED