Engineering consultancy — Computational fluid dynamics

The power of CFD simulation at the heart of your engineering decisions.

We model air, heat and wind with scientific precision — to design, optimise and safeguard your most complex infrastructure.

10+
years of expertise
100+
sites simulated
9
offices worldwide

Our areas of expertise in CFD simulation

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.

Areas of expertise

One single physics, every one of your environments.

See our work
Our method

From geometry to verdict, a fully controlled chain.

Every study follows a rigorous protocol, calibrated against real measurement campaigns and a hundred or so simulated sites.

01

Scoping & geometry

Defining objectives, simplifying the 3D model and identifying the critical zones of interest.

02

Meshing & models

Tailored mesh, choice of physical models and measured boundary conditions.

03

High-performance computing

Solving on compute servers, with multiple scenarios tested in parallel.

04

Analysis & recommendations

Reading the fields, identifying risks and delivering actionable recommendations.

200+
data center sites modelled
1000+
simulations run
9
offices · Europe & worldwide
PhD
doctorate engineers per discipline
Digital twin

A virtual replica, true to the reality of your flows.

We digitally reproduce all of your equipment and flows to visualise velocity, temperature and pressure in any zone — before anything is even built.

  • Anticipate extreme scenarios

    Test critical failures and limiting conditions with no risk to the installation.

  • Cut prototypes & testing

    Validate virtually and save the cost of physical wind-tunnel tests.

  • Optimise energy

    Pinpoint recirculation zones and fine-tune your cooling set-points.

See a full study
Case studies

Real projects, measurable results.

All CFD projects
Research & rigour

Science before the promise.

Innovation is what drives us. Our work is regularly published in scientific journals and presented at international conferences — a guarantee of proven, verifiable methods.

100%
studies calibrated against measurements
PhD
senior doctorate engineers per discipline
Why EOLIOS

Why choose our CFD engineering firm?

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.

Your CFD simulation partner in London and beyond

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 project
Our presence

Rooted in London, European in reach, global in expertise

From 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.

Data Center Air & Wind HVAC engineering Smoke control Industries Industrial process Laboratories
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CFD studies

Our CFD simulation studies.

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.

Explore the media library

They trust EOLIOS with their thermal & airflow challenges

OVHcloud Microsoft Azure Equinix Data4 Digital Realty Rolls-Royce Vinci Saint-Gobain

A thermal, airflow or energy challenge?

Tell our engineers about your project. We reply with an initial technical reading — not a sales pitch.