Mesoscale simulations of hydrodynamic squirmer interactions [PDF]
Physical Review E, 2010 The swimming behavior of self-propelled microorganisms is studied by particle-based mesoscale simulations. The simulation technique includes both hydrodynamics and thermal fluctuations that are both essential for the dynamics of microswimmers. The swimmers are modeled as squirmers, i.e., spherical objects with a prescribed tangential surface velocity ...
Götze, I., Gompper, G.
openaire +3 more sources
Magellanic satellites in ΛCDM cosmological hydrodynamical simulations of the Local Group
, 2021 We use the APOSTLE ΛCDM cosmological hydrodynamical simulations of the Local Group to study the recent accretion of massive satellites into the halo of Milky Way (MW)-sized galaxies.
I. Santos-Santos +3 more
semanticscholar +1 more source
Detectability of embedded protoplanets from hydrodynamical simulations [PDF]
Monthly notices of the Royal Astronomical Society, 2020 We predict magnitudes for young planets embedded in transition discs, still affected by extinction due to material in the disc. We focus on Jupiter-sized planets at a late stage of their formation, when the planet has carved a deep gap in the gas and ...
E. Sanchis +7 more
semanticscholar +1 more source
Galaxy cluster mass estimation with deep learning and hydrodynamical simulations [PDF]
, 2020 We evaluate the ability of Convolutional Neural Networks (CNNs) to predict galaxy cluster masses in the BAHAMAS hydrodynamical simulations. We train four separate single-channel networks using: stellar mass, soft X-ray flux, bolometric X-ray flux, and ...
Ziang Yan +5 more
semanticscholar +1 more source
The Mass Fractionation of Helium in the Escaping Atmosphere of HD 209458b
The Astrophysical Journal, 2023 The absorption signals of metastable He in HD 209458b and several other exoplanets can be explained via an escaping atmosphere model with a subsolar He/H ratio. The low abundance of helium can be a result of planet formation if there is a small amount of
Lei Xing, Dongdong Yan, Jianheng Guo
doaj +1 more source
Submillimetre galaxies in cosmological hydrodynamical simulations – an opportunity for constraining feedback models [PDF]
, 2020 Submillimetre galaxies (SMGs) have long posed a challenge for theorists, and self-consistently reproducing the properties of the SMG population in a large-volume cosmological hydrodynamical simulation has not yet been achieved.
C. Hayward +10 more
semanticscholar +1 more source
First Constraints on Fuzzy Dark Matter from Lyman-α Forest Data and Hydrodynamical Simulations. [PDF]
Physical Review Letters, 2017 We present constraints on the masses of extremely light bosons dubbed fuzzy dark matter (FDM) from Lyman-α forest data. Extremely light bosons with a de Broglie wavelength of ∼1 kpc have been suggested as dark matter candidates that may resolve some of ...
V. Iršič +4 more
semanticscholar +1 more source
Bubble-wall velocity in local thermal equilibrium: hydrodynamical simulations vs analytical treatment [PDF]
Journal of High Energy PhysicsWe perform real-time hydrodynamical simulations of the growth of bubbles formed during cosmological first-order phase transitions under the assumption of local thermal equilibrium.
T. Krajewski +2 more
semanticscholar +1 more source
The Athena++ Adaptive Mesh Refinement Framework: Multigrid Solvers for Self-gravity
The Astrophysical Journal Supplement Series, 2023 We describe the implementation of multigrid solvers in the Athena++ adaptive mesh refinement (AMR) framework and their application to the solution of the Poisson equation for self-gravity.
Kengo Tomida, James M. Stone
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E pur si muove: Galilean-invariant cosmological hydrodynamical simulations on a moving mesh [PDF]
, 2009 Hydrodynamic cosmological simulations at present usually employ either the Lagrangian smoothed particle hydrodynamics (SPH) technique or Eulerian hydrodynamics on a Cartesian mesh with (optional) adaptive mesh refinement (AMR). Both of these methods have
V. Springel
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