Particle deliquescence in a turbulent humidity field

Niedermeier, Dennis; Hoffmann, Rasmus; Schmalfuss, Silvio; Frey, Wiebke; Senf, Fabian; Hellmuth, Olaf; Pöhlker, Mira; Stratmann, Frank

doi:https://doi.org/10.5194/ar-3-219-2025

Articles | Volume 3, issue 1

https://doi.org/10.5194/ar-3-219-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/ar-3-219-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 3, issue 1

Research article

|

29 Apr 2025

Research article |

| 29 Apr 2025

Particle deliquescence in a turbulent humidity field

Dennis Niedermeier, Rasmus Hoffmann, Silvio Schmalfuss, Wiebke Frey, Fabian Senf, Olaf Hellmuth, Mira Pöhlker, and Frank Stratmann

Data sets

Atmospheric simulation chamber study: sodium chloride + water + None - Aerosol study - hygroscopicity - 2021-07-13 (Version 1.0) [Data set]. AERIS. Niedermeier, D. https://doi.org/10.25326/H5TE-AS54

Atmospheric simulation chamber study: sodium chloride + water + None - Aerosol study - hygroscopicity - 2022-03-15 (Version 1.0) [Data set]. AERIS. Niedermeier, D. https://doi.org/10.25326/CD1K-QF91

Short summary

This study examines the deliquescence behavior of NaCl particles in a turbulent humidity field using the wind tunnel LACIS-T (Turbulent Leipzig Aerosol Cloud Interaction Simulator). The results show that turbulent relative humidity (RH) fluctuations affect the number of deliquesced particles, depending on the mean RH, strength of humidity fluctuations, and particle residence time. It turns out that, in addition to the mean RH, it is essential to consider humidity fluctuations and particle history when determining the phase state of the deliquescent particles.