EOLIOS is a unique company, specialising in the mathematical modelling of velocity, temperature, humidity and gas fields, as well as in the energy simulation of a building's engineering systems.
Through computational fluid dynamics (CFD), we make visible and quantifiable phenomena that the eye cannot see : airflows, heat transfer, pollutant dispersion, thermal stratification. Our models turn complex problems into clear maps and concrete decisions, from data center to industry, from commercial buildings to critical infrastructure. We work at every project scale : from a one-day advisory assignment to the most complex R&D projects.
Air and fluid flows, turbulence, over-speeds and recirculation zones.
Heat transfer — convection, conduction, radiation — and thermal stratification.
Condensation, evaporation and hygrometric comfort of indoor environments.
Pollutants, smoke, dust and aerosols — air quality and safety.
Energy simulation of engineering systems and the performance of installations.
EOLIOS brings together a team of doctor-engineers in fluid mechanics, recognised in their discipline. With several years of experience on demanding projects, they master the entire chain : from needs analysis to 3D modelling, from high-performance computing to the rigorous interpretation of results.
Originally founded in France, EOLIOS Engineering is today a benchmark consultancy in thermal and airflow simulation, in Europe and worldwide. Present in Paris, London, Milan, Munich, Madrid, Warsaw, Casablanca and the United States, we support manufacturers, operators, architects and project owners on their most demanding projects.
From aeronautics to pharmaceuticals, from sport to energy, our studies span a broad range of sectors — always with the same scientific rigour and the same care in our deliverables.
The fidelity of a CFD study comes down to the fineness of the mesh and the number of scenarios computed. To never compromise on accuracy, EOLIOS relies on a hybrid computing infrastructure : dedicated in-house servers, complemented by near-unlimited power in the cloud.
Our in-house compute servers (HPC), made up of several hundred cores and a large memory capacity, run our parallelised solvers (MPI) every day. Our clients' sensitive data stays controlled end to end, in a confidential and secure environment.
For the heaviest models and activity peaks, we mobilise thousands of cores in the cloud on demand (AWS, Azure, Google Cloud). This elasticity removes queues, lets us run many scenarios in parallel and meet deadlines, without over-sizing our hardware.
Hundreds of millions of cells to capture geometry and turbulence in fine detail.
High-fidelity modelling of turbulence and unsteady regimes over long durations.
Several variants and conditions computed simultaneously to decide on hard data.
From a one-day advisory to an R&D project : the resource scales to the size of the study.
Computation in a controlled environment, with guaranteed confidentiality and traceability of results.
The local + cloud combination secures the schedule even on the most demanding studies.
High-fidelity models, calibrated on real measurement campaigns and led by doctor-engineers in fluid mechanics.
Results translated into maps, slices and videos you can act on : you decide fast, on solid grounds.
We do not sell equipment : our recommendations serve only the performance and safety of your project.
EOLIOS Engineering was born from a conviction : numerical simulation can make visible — and controllable — the most complex thermal and airflow phenomena. Since our beginnings in France, we have made computational fluid dynamics (CFD) a decision-making tool serving critical infrastructure.
Across projects — from the data center to industry, from HVAC engineering to fire safety —, our know-how has deepened and our team has grown with doctor-engineers per discipline. EOLIOS now has 9 offices in Europe and worldwide, and supports operators, designers and project owners at every stage of their projects.
We are looking for engineers passionate about fluid mechanics, curious and rigorous, who want to push the limits of simulation in the service of concrete, demanding projects.
Data centers, stadiums, hospitals, industries : real, high-impact studies on critical infrastructure.
High-performance computing tools and a team of doctor-engineers to keep growing your skills.
A setting where scientific rigour and team spirit come first, in France as internationally.
Comfort, energy, safety, air quality : our CFD engineers turn your flow questions into concrete decisions.
