A consultancy specialised in CFD simulation engineering for data centers and the creation of thermal digital twins.
Whether you are designing a new data center, looking to solve a problem on an existing site or planning a future IT deployment, we can help. EOLIOS sets out to answer every question raised by the thermal phenomena found in data centers.
Our services rely on the design of digital twins and the use of computational fluid dynamics (CFD) to quickly visualise flow velocity, density, thermal influence and chemical concentration in any zone. Our studies analyse safety, energy and air-quality issues in order to propose the best solutions.
Server rooms: hot/cold aisles, recirculation, rack inlet air temperature.
View this expertise →Thermal plumes, generator sets and rooftop exhausts depending on wind and weather.
View this expertise →A real-time virtual replica of all your equipment and airflows.
View this expertise →Thermal optimisation of UPS, STS and transformer rooms.
View this expertise →3D modelling of existing data centers, troubleshooting malfunctions.
View this expertise →Impact of thermal exhausts on the environment and air quality.
View this expertise →Reducing recirculation and consumption, PUE calculation.
View this expertise →Smoke propagation, gas extinguishing (IEAG), fire safety.
View this expertise →Modelling load banks ahead of commissioning tests.
View this expertise →Click a step to expand it: what we analyse, and what we deliver.
Every study follows a rigorous protocol, calibrated on real measurement campaigns and a hundred or so simulated sites.
Drawings, power loads, CRAH configuration and measurement campaign.
3D geometry, mesh refined around critical zones.
Nominal, ramp-up and critical failures.
Server-side solving: transient and steady-state regimes.
Fields, bottlenecks and quantified recommendations.
A selection of the CFD studies carried out for operators, designers and project owners.
Digital twinData center study — Data Hall & UPS rooms
HyperscaleExternal & internal CFD — Hyperscale
OptimisationCFD optimisation — Data Center
InternalData Center — DC28 — Internal
Technical roomsTechnical rooms — Data Center
CoolingCooling optimisation — Data Center
ExternalData Centers — DC15.1 & DC15.2 — External
Smoke controlSmoke-control engineering in a data center
ExternalDC23 — External
ExternalPA22 — Meudon
ExternalData Center — Paris
FireNOVEC gas — SAMU95
In-depth articles and videos from our CFD software.
Innovative solutions for data center climate management.
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Automatic gas extinguishing systems to put out a fire effectively.
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A real-time virtual replica of all a data center's equipment.
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CFD simulation and modelling: excellent alternatives to physical testing.
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Will the cooling handle 100% of the thermal load?
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Architecture, redundancy and critical systems explained.
Learn more →Fast, accurate simulations from the most powerful CFD software.
At EOLIOS Engineering, we specialise in data center CFD simulation and the creation of digital twins. Based in France, with offices in London, Milan, Munich, Madrid, Warsaw, Casablanca and the USA, our firm helps companies optimise server-room cooling, manage airflow and thermally model their data centers.
CFD simulation makes it possible to visualise and analyse airflow, thermal distribution and overheating zones with precision: detecting hot spots, anticipating failure risks, optimising layout and ventilation, and reducing energy costs. PUE calculation by CFD modelling measures the energy efficiency of your infrastructure, while the study of chilled-water loops and heat-rejection systems ensures optimal cooling.
Data security relies on anticipating risks: fire simulation, analysis of critical and failure scenarios, and assessment of the urban heat-island impact. From audit to optimisation, every study is carried out by our expert engineers with a clear, actionable deliverable — to guarantee the performance, energy efficiency and safety of your critical infrastructure, in France and internationally.
Data center studies and design rely on the expertise of a team of doctor-engineers in fluid mechanics, recognised in their discipline. Specialists in CFD simulation and thermal digital twins, our engineers support operators, designers and project owners at every stage of a data center's life: design, optimisation, renovation or extension.
Originally founded in France, EOLIOS Engineering is today a benchmark consultancy in thermal and airflow simulation for data centers, in Europe and worldwide. Present in Paris, London, Milan, Munich, Madrid, Warsaw, Casablanca and the United States, we work on critical infrastructure wherever it is built — combining sharp scientific expertise, high-performance computing tools and a fine understanding of the data center ecosystem.
Recognised scientific expertise, a lead doctor per discipline.
A hundred or so data centers simulated, from IT room to hyperscale.
Local support for your international projects.
The simplest thing is to talk it through together. Our engineers reply with an initial technical read.