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SUMMARY:Journey of Droplet through various spatio-temporal scales - Prof S
 aptarshi Basu
DTSTART:20230831T130000Z
DTEND:20230831T140000Z
UID:TALK204388@talks.cam.ac.uk
CONTACT:Angkur Jyoti Dipanka Shaikeea
DESCRIPTION:In the first part of my seminar\, I will present the gamut of 
 works currently being pursued in my lab at IISc ranging from interfacial t
 ransport to large-scale gas turbines. I will showcase different interestin
 g results mostly in the domain of multiphase systems related to droplet co
 mbustion\, bacteria\, virulence coupling with flow\, colloids and interfac
 es\, vortex interaction with substrates\, and high-pressure combustion sys
 tems.\n\nI will highlight two topics in detail in the second part of my ta
 lk. The first one will be related to how droplet level transport with uniq
 ue experiments can be utilized to understand and predict the spread of res
 piratory pandemics like COVID-19. We will show how simple modeling\, exper
 iments involving surrogate respiratory droplets in levitators\, and imping
 ement of cough droplets on facemasks can be used to unearth the essential 
 physics of transmission pertaining to COVID-19. The other topic will be re
 lated to the interaction of complex fluid droplets with shock waves and as
 sociated flow. This part will highlight the design and implementation of a
  diaphragm-less\, gas less portable shock tube. Subsequently\, we will sho
 wcase high-fidelity experiments and new physics regarding the interaction 
 of such shock fronts with droplets leading to instabilities and atomizatio
 n. We offer insights into such intricate physics. The shock-droplet atomiz
 ation is central to closed coupled atomizer used for generating metal powd
 er for additive manufacturing.
LOCATION:LR3B (Inglis Building\, Department of Engineering\, Trumpington S
 treet\, CB2 1PZ)
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