Abstract
For the treatment of astrophysical flows with high Mach numbers and high Reynolds numbers, we proposed a method called FEARLESS (Fluid mEchanics with Adaptively Refined Large-Eddy SimulationS) that combines adaptive methods and subgrid scale modeling. The basic idea is to resolve anisotropic, supersonic flow features (shocks, collapsing regions) using AMR (Adaptive Mesh Refinement), whereas length scales dominated by isotropic, subsonic turbulence are described by a subgrid scale model. Implementing FEARLESS into the open source AMR code Enzo, we successfully tested the new method both in hydrodynamic and self-gravitating turbulence simulations. In the next phase of the project, FEARLESS will be applied to star formation and galactic disk simulations.
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Schmidt, W., Maier, A., Hupp, M., Federrath, C., Niemeyer, J. (2009). Star Formation in the Turbulent Interstellar Medium and Its Implications on Galaxy Evolution. In: Wagner, S., Steinmetz, M., Bode, A., Brehm, M. (eds) High Performance Computing in Science and Engineering, Garching/Munich 2007. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69182-2_7
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DOI: https://doi.org/10.1007/978-3-540-69182-2_7
Publisher Name: Springer, Berlin, Heidelberg
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