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SUMMARY:The fluid dynamics of airborne disease transmission - Dr Rajesh Bh
 agat
DTSTART:20221006T121000Z
DTEND:20221006T130000Z
UID:TALK174506@talks.cam.ac.uk
CONTACT:Dr Sandra Petrus-Reurer
DESCRIPTION:Throughout human history\, nothing has killed more people than
  infectious diseases. Natural pandemics are ever-present and the next pand
 emic is a matter of ‘when’\, not ‘if’. The event frequency for pan
 demics caused by natural and synthetic pathogens are likely to increase du
 e to human encroachment into natural environments\, bio-terrorism threats\
 , high population density urban settings\, lifestyles\, and global connect
 ivity. Covid-19 caught us unprepared\, and we ended up responding too late
 \; nevertheless\, in the last couple of years\, we have made great strides
  in our understanding of the mechanism of airborne disease transmission an
 d its control. To a considerable extent\, airborne disease transmission is
  a fluid dynamics problem -- the formation of droplets and aerosols are in
 terfacial problems\, and their transport and consequently the transmission
  is a building ventilation flow problem. \nThe talk is divided into two pa
 rts: In the first part\, I will briefly discuss the advances I have made i
 n the field of interfacial flows. I have discovered processes of fundament
 al importance which have previously been unrecognised and which challenges
  the textbook understanding of these flows. Subsequently\, I will briefly 
 discuss the challenges associated with the ventilation flow problem and so
 me of the key advances made in the field. And finally\, I will summarise t
 he outstanding questions -- the known unknowns -- that emerged from our wo
 rk during the pandemic\, which need to be addressed. 
LOCATION:1 Newnham Terrace\, Darwin College
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