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CATEGORIES:Academics,Lectures & conferences
DESCRIPTION:Title. Going mobile: if Pete Towns(h)end were to do data assim
ilation\n\nSpeaker. Mike Jolly\, Indiana University Bloomington\, IN\n\nAb
stract. We develop\, analyze\, and test an approximate\, global data assim
ilation/synchronization algorithm based on purely local observations for th
e two-dimensional Navier-Stokes equations on the torus. We prove that\, for
any error threshold\, if the reference flow is analytic with sufficiently
large analyticity radius\, then it can be recovered within that threshold.
Numerical computations are included to demonstrate the effectiveness of th
is approach\, as well as variants with data on moving subdomains. We prove
that\, if the movement is fast enough\, then the algorithm perfectly synch
ronizes with a reference solution. The analysis suggests an informed scheme
in which the subdomain moves according to a region where the error is domi
nant is optimal. Numerical simulations are presented that compare the eff
icacy of movement that follows a regular pattern\, one guided by the domina
nt error\, and one that is random.
DTEND:20240209T190000Z
DTSTAMP:20240528T033620Z
DTSTART:20240209T180000Z
LOCATION:
SEQUENCE:0
SUMMARY:Going mobile: if Pete Towns(h)end were to do data assimilation with
Mike Jolly
UID:tag:localist.com\,2008:EventInstance_45572715217609
URL:https://calendar.fiu.edu/event/going_mobile_if_pete_townshend_were_to_d
o_data_assimilation_with_mike_jolly
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