activity
20222026
most citedThe role of physical and numerical viscosity in hydrodynamical instabilities

14 citations · 32 across the 7 of their papers we have counts for

collaborators

8 papers

astro-ph.IM2026

The OpenGadget3 Code for Cosmological Simulations

Klaus Dolag, Geray S. Karademir, Luca Tornatore +28

We present the public release of OpenGadget3 (OG3), a substantially extended and re-organised version of the widely used Gadget-2/3 family of cosmological simulation codes. Since G…

astro-ph.GA2026

Merge and Strip II: Imprint of galaxy formation physics and viscosity on baryon-dominated dwarf galaxies

Anna Ivleva, Klaus Dolag, Rhea-Silvia Remus +2

Motivated by the discovery of peculiar dwarf galaxies inside galaxy clusters such as blue candidates (BCs), dark galaxies and ultra-diffuse galaxies (UDGs), we present hydrodynamic…

astro-ph.IM2025

Braginskii Viscosity in Cosmological Simulations of Galaxy Clusters: Implementation, Validation, and First Application

Tirso Marin-Gilabert, Ulrich P. Steinwandel, Milena Valentini +2

We present the implementation of an anisotropic viscosity solver within the magnetohydrodynamics (MHD) framework of the TreeSPH code OpenGadget3. The solver models anisotropic visc…

astro-ph.GA2025★ 5 cited

The (Limited) Effect of Viscosity in Multiphase Turbulent Mixing

Tirso Marin-Gilabert, Max Gronke, S. Peng Oh

Multiphase gas can be found in many astrophysical environments, such as galactic outflows, stellar wind bubbles, and the circumgalactic medium, where the interplay between turbulen…

astro-ph.IM2024★ 7 cited

Vortex-p: a Helmholtz-Hodge and Reynolds decomposition algorithm for particle-based simulations

David Vallés-Pérez, Susana Planelles, Vicent Quilis +3

Astrophysical turbulent flows display an intrinsically multi-scale nature, making their numerical simulation and the subsequent analyses of simulated data a complex problem. In par…

astro-ph.CO2024★ 4 cited

Density Fluctuations in the Intracluster Medium: An Attempt to Constrain Viscosity with Cosmological Simulations

Tirso Marin-Gilabert, Ulrich P. Steinwandel, Milena Valentini +2

The impact of viscosity in the Intracluster Medium (ICM) is still an open question in astrophysics. To address this problem, we have run a set of cosmological simulations of three…

astro-ph.CO2023★ 2 cited

Towards cosmological simulations of the magnetized intracluster medium with resolved Coulomb collision scale

Ulrich P. Steinwandel, Klaus Dolag, Ludwig Böss +1

We present the first results of one extremely high resolution, non-radiative magnetohydrodynamical cosmological zoom-in simulation of a massive cluster with a virial mass M$_\mathr…

astro-ph.CO2022★ 14 cited

The role of physical and numerical viscosity in hydrodynamical instabilities

Tirso Marin-Gilabert, Milena Valentini, Ulrich P. Steinwandel +1

The evolution of the Kelvin-Helmholtz Instability (KHI) is widely used to assess the performance of numerical methods. We employ this instability to test both the smoothed particle…