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| Paper: |
Turbulence Modelling and Stirring Mechanisms in the Cosmological Large-scale Structure |
| Volume: |
453, Advances in Computational Astrophysics: Methods, Tools, and Outcome |
| Page: |
151 |
| Authors: |
Iapichino, L.; Schmidt, W.; Niemeyer, J. C.; Merklein, J. |
| Abstract: |
FEARLESS (Fluid mEchanics with Adaptively Refined Large Eddy
SimulationS) is a numerical scheme for modelling subgrid-scale
turbulence in cosmological adaptive mesh refinement simulations. In
this contribution, the main features of this tool will be outlined. We
discuss the application of this method to cosmological simulations of
the large-scale structure. The simulations show that the production of
turbulence has a different redshift dependence in the intra-cluster
medium and the warm-hot intergalactic medium, caused by the distinct
stirring mechanisms (mergers and shock interactions) acting in
them. Some properties of the non-thermal pressure support in the two
baryon phases are also described. |
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