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SUMMARY:Instability\, mixing and fragmentation in planetary collisions - M
 aylis Landeau\, IPGP
DTSTART:20221014T150000Z
DTEND:20221014T160000Z
UID:TALK182942@talks.cam.ac.uk
CONTACT:Prof. Jerome Neufeld
DESCRIPTION:The Earth formed by high-energy collisions between planetary e
 mbryos. I will present laboratory experiments on the fluid dynamics of the
 se collisions. I will show that the impact of a liquid volume onto a liqui
 d pool reproduces the cratering observed in numerical simulations and at t
 he surface of planets. Unlike simulations\, experiments produce turbulent 
 mixing. From our findings\, we infer the drop size and the degree of mixin
 g within the forming Earth. These parameters controlled the composition of
  the Earth's interior. 
LOCATION:MR2\, Centre for Mathematical Sciences\, Wilberforce Road\, Cambr
 idge
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