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OATS-DAUT SEMINAR
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Speaker:
Luigi Iapichino (Heidelberg University, D)
Title:
Modelling of turbulent flows applied to numerical simulations of galaxy
clusters
Date: Wednesday, January 14th, 2009
Time: 12:00
Venue: Villa Bazzoni
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Abstract:
FEARLESS (Fluid mEchanics with Adaptively Refined Large Eddy SimulationS) is a
novel numerical approach for hydrodynamical simulations of turbulent flows,
which combines the use of the adaptive mesh refinement (AMR) with a subgrid
scale model for the unresolved scales. This tool has been implemented into
the ENZO code, and first results from cosmological simulations of large scale
structure and galaxy cluster evolution are presented and discussed. Though
the energy contribution from the unresolved scales is not prominent, the
temperature and density radial profiles of the simulated cluster are affected
by turbulent diffusion, with a diffusion coefficient which is in agreement
with previous models for the iron abundance profiles in observed clusters.
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contact: Stefano Borgani (DAUT)