Turbulent Entrainment and Mixing in Clouds
Prof. Szymon Malinowski (Institute of Geophysics, Faculty of Physics, University of Warsaw)

Turbulent entrainment, i.e. inflow of the environmental air into the turbulent cloud across the cloud border and following mixing is a crucial process of cloud physics. It influences not only cloud dynamics, but also thermodynamics and microphysics and is an example of multi-process and multi-scale interactions in clouds In the talk I will briefly sketch the evolution of the entrainment concept from its initial formulation in laboratory fluid dynamics, through its adoptions to cumulus and stratocumulus clouds, to recent call for a more sophisticated approach accounting for the details of turbulent mixing. A selection of experimental and numerical results will illustrate the beauty and the complexity of cloud processes.