We model air, heat and wind with scientific precision — to design, optimise and safeguard your most complex infrastructure.
EOLIOS is a CFD engineering firm specialising in fluid mechanics. With several years of experience and unrivalled expertise, we put our know-how at the service of your projects. Our team of engineers is dedicated to the design, analysis and delivery of complex systems, tailored to your specific needs. Whatever the size of your project, we always approach it with the same rigour.
Pedestrian comfort, pollutant dispersion, wind loads and building aerodynamics.
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Thermo-aeraulic comfort, air diffusion, large volumes and energy performance.
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Thermal digital twins, failure scenarios and validation of rack inlet air temperatures.
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Smoke propagation, gas extinguishing (IEAG) and fire safety engineering (FDS).
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Natural ventilation, dust, process heat and industrial digital twins.
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Networks and pressure losses, stacks and draught, thermal storage and processes.
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Cleanrooms, laminar flow, particulate contamination and ISO 14644 compliance.
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Fluid-mechanics research lab, digital wind tunnel and development of CFD methods.
Open the expertiseEvery study follows a rigorous protocol, calibrated against real measurement campaigns and a hundred or so simulated sites.
Defining objectives, simplifying the 3D model and identifying the critical zones of interest.
Tailored mesh, choice of physical models and measured boundary conditions.
Solving on compute servers, with multiple scenarios tested in parallel.
Reading the fields, identifying risks and delivering actionable recommendations.
We digitally reproduce all of your equipment and flows to visualise velocity, temperature and pressure in any zone — before anything is even built.
Test critical failures and limiting conditions with no risk to the installation.
Validate virtually and save the cost of physical wind-tunnel tests.
Pinpoint recirculation zones and fine-tune your cooling set-points.

Thermal & airflow digital twin of a hyperscale: outdoor Venturi effect and internal inlet air temperatures.

Mapping the turbulence zones and wind comfort around the towers of the La Défense district.

Thermal draught, capture of furnace plumes and operator comfort across the production hall.

Pool airflow: control of condensation, comfort and air diffusion.

FDS simulation of smoke extraction: visibility, temperatures and the performance of roof vents.

Laminar flow, deflectors and ISO 14644 compliance for contamination control.
Innovation is what drives us. Our work is regularly published in scientific journals and presented at international conferences — a guarantee of proven, verifiable methods.
Based in London, our engineers put advanced numerical tools at your disposal to cut your costs, save time and improve the performance of your installations. As a CFD engineering firm based in London and present across Europe, we help you anticipate risks, optimise your designs and strengthen the safety of your infrastructure.
Whether your project is in London, elsewhere in the UK or anywhere in Europe, EOLIOS remains a partner close at hand. Our nine offices — from London to Paris, Milan, Munich, Madrid, Warsaw or Casablanca, all the way to the United States — and our on-site work place us as close as possible to your installations.
Contact us today to discuss your projects and benefit from tailored expertise.
Discuss your projectFrom London to Paris, Milan, Madrid or Warsaw, and as far as the Middle East and North America, our engineers work as close as possible to your installations. Every point on the map is a CFD project we have actually delivered. Hover over it to explore.
Every CFD study is carried out on a real case. Temperatures, air velocities, smoke and pressures : our CFD work makes the physics measurable, to design, optimise and safeguard your installations.
Data CenterThermal digital twin of a hyperscaleSee the study
IndustriesTemperature isosurface — steelworks hallSee the study
LaboratoriesLaminar flow of a cleanroomSee the study
IndustriesStreamlines coloured by temperatureSee the study
Smoke controlFire engineering — fashion showSee the study
HVAC engineeringAirflow of an aquatic centreSee the study
Air & WindPedestrian wind comfort — La DéfenseSee the study
They trust EOLIOS with their thermal & airflow challenges
Tell our engineers about your project. We reply with an initial technical reading — not a sales pitch.