In-cloud Measurements of Drop Dynamics

etc15 Tracking Number 405

Presentation:
Session: Atmospheric turbulence 3
Room: Room C
Session start: 10:30 Wed 26 Aug 2015

Jan Molacek   jan.molacek@ds.mpg.de
Affifliation: Max Planck Institute for Dynamics and Self-Organization
Haitao Xu   haitao.xu@ds.mpg.de
Affifliation: Max Planck Institute for Dynamics and Self-Organization
Steffen Risius   steffen.risius@dlr.de
Affifliation: Max Planck Institute for Dynamics and Self-Organization
Eberhard Bodenschatz   eberhard.bodenschatz@ds.mpg.de
Affifliation: Max Planck Institute for Dynamics and Self-Organization

Topics: - Atmospheric turbulence, - Turbulence in multiphase and non-Newtonian flows

Abstract:

We here present the results of a measurement campaign at the Umweltforschungsstation Schneefernerhaus (UFS) research station at an elevation of 2650 m, on the mountain top of Zugspitze, Germany. We measured the three-dimensional motion of the water droplets inside a turbulent cloud using three high-speed stationary cameras. We show the statistics of droplet acceleration and velocities, and their dependence on the flow parameters.