Mittwoch, 9. Januar 2008 - 15:15
Markus Hupp (Würzburg):
"Simulating Star Formation in Isolated Disk Galaxies"
Zusammenfassung. Combining the capabilities of adaptive mesh refinement (AMR) and large-eddy simulations (LES) to capture localized features and to represent unresolved turbulence, respectively, we have developed a new scheme called Fluid mEchanics with Adaptively Refined Large-Eddy SimulationS (FEARLESS). Additionally, a subgrid scale (SGS) model based on local similarity arguments for turbulent transport is currently being implemented into the hydrocode ENZO. With the unique capability to compute the local SGS turbulent energy of unresolved turbulence we plan to utilize a recently proposed star formation algorithm (Krumholz & McKee 2005) to simulate an isolated disk galaxy. I will discuss the details of the used galaxy toy model and employed parametrization of relevant physical processes and present results of our first simulations yet with classical star formation routines. Concluding with some insights on numerics and realization of the turbulence regulated star formation algorithm I will be around till the end of the week for controversial and or consensual discussions.