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DTSTART:20260329T030000
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DTSTAMP:20260415T110119Z
UID:6827042636c7d632261084@ist.ac.at
DTSTART:20251211T110000
DTEND:20251211T120000
DESCRIPTION:Speaker: Felipe Pacheco Vázquez\nhosted by Scott Waitukaitis\n
 Abstract: This talk focuses on the Leidenfrost effect. First\, I will pres
 ent experiments investigating the collision and coalescence dynamics of dr
 ops on overheated surfaces. Drops of the same liquid practically coalesce 
 at contact\, but when drops of different liquids collide\, they bounce rep
 eatedly. This happens because the Leidenfrost effect occurrs not only with
  the substrate\, but also between the drops at the moment of collision due
  to the difference in boiling temperature. We call this scenario the tripl
 e Leidenfrost effect.In the second part\, I will present a method for stab
 ilizing and designing a Leidenfrost puddle: when a thin\, hydrophilic laye
 r with an appropriate design is placed on the liquid\, the puddle takes on
  the shape of the layer due to adhesive forces\, becoming stable during th
 e whole process. The evaporation rate of the puddle increases significantl
 y and can be modified by adjusting the dimensions of the layer\, leading t
 o a variety of potential applications. Oscillations observed in the confin
 ed liquid puddles are described as analogous to Faraday waves.
LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101
 )\, ISTA
ORGANIZER:cpetz@ist.ac.at
SUMMARY:Felipe Pacheco Vázquez: From Coalescence to the Design of Leidenfr
 ost Droplets
URL:https://talks-calendar.ista.ac.at/events/6204
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