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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-3013
DTSTART:20130424T210000Z
DTEND:20130424T220000Z
DTSTAMP:20260420T020408Z
LAST-MODIFIED:20130417T163828Z
LOCATION:1310 Sterling Hall
SUMMARY:Cosmology on a Moving Mesh\, Distinguished Lecture Series\, La
 rs Hernquist\, Harvard University
DESCRIPTION:Understanding the formation and evolution of galaxies in a
  cosmological context using numerical simulations remains an elusive g
 oal.  In this talk\, I describe a new approach to modeling the hydrody
 namics of galaxy formation in which the equations of motion are solved
  on a moving mesh.  The use of a moving mesh makes the scheme fully La
 grangian\, unlike popular particle-based codes which are quasi-Lagrang
 ian in nature\, and mitigates against advection errors when a spatiall
 y fixed grid is used.  I present results from an initial study compari
 ng results for a moving mesh with those obtained using a smoothed part
 icle hydrodynamics solver.  This preliminary work suggests that the ne
 w approach offers promise for resolving the long-standing problems whi
 ch have plagued this field for nearly two decades.<br><br>
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URL:https://www.physics.wisc.edu/events/?id=3013
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