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HVAC engineering.

Thermal comfort, air quality and energy performance of buildings through CFD simulation and the modelling of indoor environments.

What we do

How does EOLIOS master the climate of your buildings?

Whether you are designing a new building, looking to correct discomfort on an existing site or to validate an HVAC installation, we can help. EOLIOS sets out to answer every question raised by the thermal-airflow phenomena found in buildings: occupant comfort, air quality, stratification and condensation.

Our services rely on CFD simulation and indoor-environment modelling to quickly visualise flow velocity, temperature, humidity and air diffusion in any zone. Our studies analyse comfort, energy and air-quality issues in order to propose the best solutions.

EOLIOS in numbers

Proven expertise on critical infrastructure.

500+
buildings & environments simulated
9
offices · Europe & worldwide
3D
comfort, air & thermal coupled
PhD
doctor-engineers per discipline
Our specific solutions

All the thermal-airflow comfort of your buildings.

Your need

We support you at every step.

Click a step to expand it: what we analyse, and what we deliver.

Our approach

From survey to report, a controlled chain.

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

01

Scoping & data

Drawings, thermal loads, HVAC systems and measurement campaign.

02

Model & mesh

3D geometry, mesh refined around critical zones.

03

Scenarios

Nominal, ramp-up and critical failures.

04

HPC computation

Server-side solving: transient and steady-state regimes.

05

Report & recommendations

Fields, bottlenecks and quantified recommendations.

Our projects

Our HVAC engineering projects.

A selection of the CFD studies carried out for project owners, architects and engineering offices.

All our CFD projects
Our clients

They trust us with their critical infrastructure.

Resources

Our HVAC engineering technical papers.

In-depth articles and videos from our CFD software.

Study videos

Our HVAC engineering study videos.

Fast, accurate simulations from the most powerful CFD software.

All our videos
Thermal comfort of an open-plan office
Airflow of an aquatic centre
Natural ventilation by wind tower
Medical supplies warehouse
Cold room — high racking
Cold room — penetrant testing
Learn more

CFD simulation in HVAC engineering: comfort & energy performance.

At EOLIOS Ingénierie, we specialise in CFD simulation applied to HVAC engineering and the modelling of indoor environments. Based in France, with offices in London, Milan, Munich, Madrid, Warsaw, Casablanca and the USA, our firm supports project owners, architects and engineering offices in mastering thermal comfort, air quality and the energy performance of buildings.

CFD simulation makes it possible to visualise and analyse airflow, the distribution of temperature and humidity, stratification and discomfort zones with precision: occupant comfort, air diffusion, condensation, smoke control and natural ventilation. Coupled with dynamic thermal simulation, it assesses energy demand and optimises HVAC systems at both the design and renovation stages.

From swimming pools to large volumes, from museums to sports venues, every study is carried out by our doctor-engineers with a clear, actionable deliverable — to guarantee the comfort, energy efficiency and air quality of your buildings, in France and internationally.

Our teams

Recognised engineers, serving building comfort.

Thermal-airflow comfort studies rely on the expertise of a team of doctor-engineers in fluid mechanics, recognised in their discipline. Specialists in CFD simulation and indoor-environment modelling, our engineers support project owners, architects and engineering offices at every stage of a project: design, regulatory validation, optimisation or renovation.

Originally founded in France, EOLIOS Ingénierie is today a benchmark consultancy in building thermal and airflow simulation, in Europe and worldwide. Present in Paris, London, Milan, Munich, Madrid, Warsaw, Casablanca and the United States, we work on all kinds of buildings — combining sharp scientific expertise, high-performance computing tools and a fine understanding of HVAC engineering.

PhD

Doctor-engineers

Recognised scientific expertise, a lead doctor per discipline.

500+

Buildings modelled

Pools, museums, lobbies, offices, warehouses: all kinds of environments.

9

Offices worldwide

Local support for your international projects.

Contact

A climate comfort project or challenge?

The simplest thing is to talk it through together. Our engineers reply with an initial technical read.