In this research area, we investigate gas‑caried particles, including their generation, interactions, flow behavior, and separation from gases in filters and dust‑removal systems as well as sorting setups.

To characterize particle size, shape, and concentration in various processes, we develop scattering and extinction sensors as well as samplers for particle collection and subsequent laboratory analysis. These experimental activities are complemented by numerical simulations of particle-gas flows, particle deposition, and filter structures using CFD, DNS, and CFD‑DEM.

Our overarching goal is to advance dust‑removal and filtration technologies and their underlying separation processes.

Current research priorities include:

• Deposition mechanisms of fine particles in electret filters and respiratory masks
• Sorting of particles in air separators for recycling, e.g., plastics
• Design and optimization of cyclones and other dust‑removal devices
• Development of respirable cyclone samplers
• Spraying behaviour of particles by acceleration in Laval nozzles for cold spay additive manufacturing 
• Desublimation, coating and agglomeration of nanoparticles in supersonic flows 
• Development of an online three‑dimensional light‑scattering sensor
• Low‑cost sensors for dust emissions
• Direct Numerical Simulation (DNS) of aerosol deposition in depth‑filter media
• Modeling and CFD simulation of particle-gas flows, electrostatic fields and particle-field interactions
   

Aerosol research related to COVID 19