Turbulenz ist ein wesentlicher Bestandteil atmosphärischer Wolken. Die turbulente Mischung trockener mit feuchter Luft verstärkt Fluktuationen in den physikalischen Feldern von Wasserdampf und Temperatur. Aufgrund der starken Intermittenz und des chaotischen Charakters turbulenter Strömungen beeinflussen…
The interactions between turbulence and cloud microphysical processes have been investigated primarily through numerical simulation and field measurements over the last 10 years. However, only in the laboratory we can be confident in our knowledge of initial and boundary conditions and are able to measure…
To improve the fundamental and quantitative understanding of the interactions between cloud microphysical
and turbulent processes, the Leibniz Institute for Tropospheric Research (TROPOS) has built up a new humid
wind tunnel (LACIS-T). LACIS-T allows for the investigation of cloud microphysical processes,…
Extreme responses of a droplet ensemble during an entrainment and mixing process as present at the edge of a cloud are investigated by means of three-dimensional direct numerical simulations in the Euler–Lagrangian framework. We find that the Damköhler number Da, a dimensionless parameter which relates…