Numerical Simulation Engineer

Expleo is a trusted partner for your innovation journey. As a global engineering, technology and consulting service provider, we are ideally positioned to help you achieve your ambitions and future-proof your business. With a smart blend of bold thinking and reliable execution, we’re able to fast-track innovation through each step of your value chain.We are strategically positioned to build value, with a global footprint across 30 countries.We are as global and local as you need us to be, with strong best-in-class pan-European technological centers and unique best-shoring capabilities.We leverage a network of high value-adding affiliates in consulting and industrial excellence, and leading partners across multiple sectors to provide you with the most comprehensive services and solutions in an ever-changing environment.

CFD Simulation: o Model and analyze fluid flows (compressible/incompressible, turbulent, multiphase) for critical applications (aerodynamics, propulsion, thermal management, etc.). o Use industry-standard tools such as OpenFOAM, ANSYS Fluent/CFX, STAR-CCM+, or inhouse codes. o Validate results through comparison with experimental or analytical data.

 Multi-Physics & FEM: o Couple physical phenomena (e.g., fluid-structure interaction, thermal-mechanical, aeroacoustics) using tools like ANSYS Multiphysics, COMSOL, or internal codes. o Perform finite element analysis (FEM) to assess structural integrity, stress, deformation, and fatigue in mechanical components interacting with fluid flows. o Use ANSYS Mechanical, Creo Simulate or similar for static/dynamic structural analyses. o Develop reduced-order models (ROM) or hybrid methods to optimize system performance.

Optimization & Innovation: o Contribute to the improvement of simulation tools (automation, Python scripting, HPC). o Propose innovative solutions to address technical challenges (e.g., drag reduction, thermal management). o Collaborate with data science teams to integrate AI/ML approaches into simulation workflows.

Collaboration & Reporting: o Work closely with R&D (Research & Development), design, testing, and customer teams. o Prepare technical reports, presentations, and specifications for project reviews. o Support wind tunnel or laboratory tests to correlate simulation and experimental data.

o Master’s or Engineering Degree in Fluid Mechanics, Aeronautics, Aerospace Engineering, Mechanical Engineering, or Applied Physics.

o 3 to 5 years in numerical simulation (CFD focus) in an industrial or academic environment  (internships included). o Experience in multi-physics or FEM (fluid-structure interaction, thermal-mechanical coupling, etc.) is a strong plus. o Familiarity with aerospace/defense standards (e.g., DO-160, MIL-STD) is appreciated.

o Proficiency in at least one CFD software (OpenFOAM, ANSYS Fluent/CFX, STAR-CCM+). o Knowledge of turbulence models (RANS, LES, DES), numerical methods (FVM, FEM), and meshing tools (ICEM CFD, Pointwise, snappyHexMesh).

o Scripting (Python, Bash) for pre/post-processing (e.g., Paraview, Tecplot, matplotlib). o Knowledge of High-Performance Computing (HPC) and Linux/cluster environments.