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This Week at Physics

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Events During the Week of March 24th through March 31st, 2013

Sunday, March 24th, 2013

Distinguished Lecture Series
"Cosmology on a Moving Mesh"
Time: 4:00 pm
Place: 1310 Sterling Hall
Speaker: Lars Hernquist, Harvard University
Abstract:
Understanding the formation and evolution of galaxies in a cosmological context using numerical simulations remains an elusive goal. In this talk, I describe a new approach to modeling the hydrodynamics 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 Lagrangian, unlike popular particle-based codes which are quasi-Lagrangian in nature, and mitigates against advection errors when a spatially fixed grid is used. I present results from an initial study comparing results for a moving mesh with those obtained using a smoothed particle hydrodynamics solver. This preliminary work suggests that the new approach offers promise for resolving the long-standing problems which have plagued this field for nearly two decades.
Host: Prof Elena D'Onghia
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Monday, March 25th, 2013

No events scheduled

Tuesday, March 26th, 2013

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Wednesday, March 27th, 2013

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Thursday, March 28th, 2013

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Friday, March 29th, 2013

No events scheduled

"This Week at Physics" poster: http://www.physics.wisc.edu/twap/posters/2013/2013-03-25.pdf

©2013 Board of Regents of the University of Wisconsin System