The influence of turbulence on the cleaning performance of indoor air cleaners

• Applicant: Professor Dr. Christian Joachim Kähler
• Subject Area: Fluid Mechanics
• Term: from 2021 to 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 469176585

Within the scope of the research project, the effect of turbulence on the mixing and filtering of aerosol particles in rooms of different geometry will be systematically analyzed. The spatial and temporal scales of turbulence will be varied over a large range using turbulence generators in order to quantify the mixing processes of aerosol particles and to determine their separation efficiency. It is expected that the turbulent scales and the intensity of turbulence are important parameters responsible for reducing the viral load in rooms and thus determining the filter performance. The results of these experimental analyses will provide valuable insight into how indoor airflow must be conditioned to efficiently reduce indoor viral loads.

• DFG Programme: Research Grants