BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY: A story of spinning tops\, swirling plumes and sugar - Dr. Daria 
 Frank
DTSTART:20220311T123000Z
DTEND:20220311T133000Z
UID:TALK170489@talks.cam.ac.uk
CONTACT:99736
DESCRIPTION:Turbulent plumes in a rotating environment exhibit a plethora 
 of fascinating and yet largely unexplored phenomena. Over the past decade\
 , the scientific interest in the dynamics of rotating plumes has been re-i
 gnited by the long-lived oil plume emanating from the ocean bottom after t
 he Deepwater Horizon (DwH) accident in 2010. The DwH plume\, a multiphase 
 plume consisting of oil droplets and gas bubbles\, was discharged at 1500 
 m depth and lasted for 87 days. During its rise\, the plume was affects by
  currents\, ocean stratification\, chemical and biological processes\, pre
 ssure changes and\, importantly\, by the Earth's rotation. The complex eff
 ects of the background rotation on the internal plume dynamics and the ass
 ociated subsurface dispersion of pollutants are still poorly understood. Y
 et\, characterising these effects is important for oil spill mitigation pu
 rposes.\n\nIn this talk\, we will give an overview of some experimental an
 d theoretical work on plumes in a rotating environment that was conducted 
 over the recent five years. We will highlight the differences in the dynam
 ics of single-phase plumes discharged into a homogeneous rotating and a no
 n-rotating environment. Further features in the plume structure arise if t
 he plume is driven by the additional forcing introduced by the presence of
  a multiphase effluent such as gas bubbles or oil droplets. We will also e
 xplore the formation of a coherent ``tornado'' vortex that can occur in so
 me circumstances. This talk will be concluded by a discussion of some aspe
 cts in the dynamics of multiphase plumes released into a stratified rotati
 ng environment. 
LOCATION:CUED\, LT6
END:VEVENT
END:VCALENDAR