Numerical Models of Turbulence in Isothermal and Thermally Bistable Interstellar Gas
2010 | conference paper. A publication with affiliation to the University of Göttingen.
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Numerical Models of Turbulence in Isothermal and Thermally Bistable Interstellar Gas
Schmidt, W.; Seifried, D.; Niklaus, M. & Niemeyer, J. C. (2010)
In:Wagner, S.; Steinmetz, M. (Eds.), High Performance Computing in Science and Engineering, Garching/Munich 2009 pp. 371-382. Fourth Joint HLRB and KONWIHR Review and Results Workshop, Garching.
Springer Nature. DOI: https://doi.org/10.1007/978-3-642-13872-0_31
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Details
- Authors
- Schmidt, Wolfram; Seifried, Daniel; Niklaus, Markus; Niemeyer, Jens C.
- Editors
- Wagner, S.; Steinmetz, M.
- Abstract
- We present a novel subgrid scale model that is applicable to highly compressible turbulence. In large eddy simulation of forced supersonic turbulence, this subgrid scale model reduces the bottleneck effect in the turbulence energy spectra and it allows for a prediction of the local rate of turbulent energy dissipation as well as the turbulent pressure. The latter has an impact, for instance, on the gravitational support of turbulent gas and the efficiency of star formation in elaborate large-scale simulations of disk galaxies. We also report results from turbulence simulations with parameterized radiative cooling, in which the effects of thermal processes on the scale of star forming clouds was investigated.
- Issue Date
- 2010
- Publisher
- Springer Nature
- Conference
- Fourth Joint HLRB and KONWIHR Review and Results Workshop
- ISBN
- 978-3-642-13871-3
978-3-642-13872-0 - Conference Place
- Garching
- Event start
- 2009-12-08
- Event end
- 2009-12-09
- Language
- English
