Air flow


A 3D model is produced by Computer Aided Design (CAD) from measurements or scans of real-world objects. Then, this 3D model is used to perform a numerical simulation by finite volumes of the air flow or gas mixture (CFD), of a finite space with an air treatment device, for different environmental conditions (temperatures, humidity, flow rates, pressures, etc.).

Particles can be inserted into the simulated flow. Interesting statistical information can be inferred from the particles trajectories such as their lifetime and their final destination.

To find an optimum, it is possible to carry out parametric studies. Simulations are performed over a range of environmental boundary condition values. Geometry can also be the subject of such a study in a co-development approach.

Physical measurements are used to characterize bioaerosols. Simulations are then more accurate with these new input data.

Results from the simulations can be compared to those of experiments, using measurement techniques such as laser tomography, Particle Image Velocimetry (VIP), Background strioscopy Oriented Schlieren (BOS), etc.


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