Wind comfort in the built environment, pedestrian wind comfort, comfort on private outdoor spaces
Thermal comfort, HVAC system assessment, climate control for offices, atria, classrooms, etc.
Smoke and heat removal (RWA), evacuation, fire propagation, smoke filling time, risk analysis
Airflow assessment, hot-spot identification, cooling optimization, increase PUE, what-if scenario’s, short-circuiting of exhaust air, wind effects on air handling units
Climate control, air quality assessment, analysis of particle concentrations, ventilation and filter system design
Indoor climate control, ventilation, cooling, filtration of pollution or smoke for production halls, etc.
Predict dispersion of particles and gases, assessment of wind effects, urban environment, factories, ship decks, offshore platforms
Building analysis and advice
We advice architects, developers, municipalities and engineers about airflow in and around buildings, to improve the comfort, safety and sustainability of a building and its environment.
Municipalities, owners, workers and users demand higher standards for their buildings, which result in the following challenges
Increasing demand for sustainable, healthy and safe buildings
Comfortable public space around buildings, without excessive wind nuisance, even in the proximity of tall buildings
More stringent requirements in terms of energy performance, air quality and fire safety of office buildings, industrial facilities, car parks, data centres and cleanrooms
- Climate change demands the design of cities which are resilient and smart.
Using our experience in fluid dynamics and thermodynamics, we advise and support our clients in complying with these building physics requirements as efficiently as possible.
Our projects can involve building components, specific rooms, large production halls, entire buildings up to urban areas and entire cities.
We like to be involved in the building design process as soon as possible to have a maximum impact. As input for our work, our customer provides us with a 3D CAD-model of a (new) building, room, parking, HVAC system, etc. When this is not available, Actiflow is able to build a 3D model from scratch, based on 2D drawings or other information.
Based on the initial simulation results, we indicate potential problems and we suggest solutions. Together with our customer, we then discuss which of those are practically feasible, and which follow-up simulations will be performed to validate these solutions. Step by step, we finally reach a solution that meets all requirements and norms, and that is acceptable to all stakeholders.
CFD and more
CFD (Computational Fluid Dynamics) is the tool we frequently use to visualize the airflow in and around buildings. However, if CFD is not the most (cost) efficient tool to answer the question of our customer, we choose alternative methods like wind tunnel measurements or other simulation techniques that suit the challenges at hand.
Standards & norms
Our simulations are performed according to all available standards and norms. In some cases, Actiflow even participated in the development of the norms. We have more than 10 years of experience, so our simulation approach is based on hundreds of projects and continuous validation efforts.