34 citations · 66 across the 7 of their papers we have counts for
7 papers · 1 filter
Performance of high-order Godunov-type methods in simulations of astrophysical low Mach number flows
G. Leidi, R. Andrassy, W. Barsukow +3
High-order Godunov methods for gas dynamics have become a standard tool for simulating different classes of astrophysical flows. Their accuracy is mostly determined by the spatial…
Turbulent dynamo action and its effects on the mixing at the convective boundary of an idealized oxygen-burning shell
G. Leidi, R. Andrassy, J. Higl +2
Convection is one of the most important mixing processes in stellar interiors. Hydrodynamic mass entrainment can bring fresh fuel from neighboring stable layers into a convection z…
Towards a self-consistent model of the convective core boundary in upper main sequence stars. Part I: 2.5D and 3D simulations
R. Andrassy, G. Leidi, J. Higl +3
There is strong observational evidence that the convective cores of intermediate-mass and massive main sequence stars are substantially larger than those predicted by standard stel…
A finite-volume scheme for modeling compressible magnetohydrodynamic flows at low Mach numbers in stellar interiors
G. Leidi, C. Birke, R. Andrassy +5
Fully compressible magnetohydrodynamic (MHD) simulations are a fundamental tool for investigating the role of dynamo amplification in the generation of magnetic fields in deep conv…
Dynamics in a stellar convective layer and at its boundary: Comparison of five 3D hydrodynamics codes
R. Andrassy, J. Higl, H. Mao +18
Our ability to predict the structure and evolution of stars is in part limited by complex, 3D hydrodynamic processes such as convective boundary mixing. Hydrodynamic simulations he…
Well-balanced treatment of gravity in astrophysical fluid dynamics simulations at low Mach numbers
P. V. F. Edelmann, L. Horst, J. P. Berberich +5
Accurate simulations of flows in stellar interiors are crucial to improving our understanding of stellar structure and evolution. Because the typically slow flows are merely tiny p…