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Non-ideal magnetohydrodynamics on a moving mesh I: Ohmic and ambipolar diffusion
Oliver Zier, Volker Springel, Alexander C. Mayer
Especially in cold and high-density regions, the assumptions of ideal magnetohydrodynamics (MHD) can break down, making first order non-ideal terms such as Ohmic and ambipolar diff…
Gravito-turbulence in local disk simulations with an adaptive moving mesh
Oliver Zier, Volker Springel
Self-gravity plays an important role in the evolution of rotationally supported systems such as protoplanetary disks, accretion disks around black holes, or galactic disks, as it c…
Simulating the magnetorotational instability on a moving mesh with the shearing box approximation
Oliver Zier, Volker Springel
The magnetorotational instability (MRI) is an important process in sufficiently ionized accretion disks, as it can create turbulence that acts as an effective viscosity, mediating…
Stellar orbit evolution in close circumstellar disc encounters
Diego J. Muñoz, Kaitlin M. Kratter, Mark Vogelsberger +2
The formation and early evolution of circumstellar discs often occurs within dense, newborn stellar clusters. For the first time, we apply the moving-mesh code AREPO, to circumstel…
Planet-disc interaction on a freely moving mesh
Diego J. Munoz, Kaitlin M. Kratter, Volker Springel +1
General-purpose, moving-mesh schemes for hydrodynamics have opened the possibility of combining the accuracy of grid-based numerical methods with the flexibility and automatic reso…