Results 21 to 30 of about 40,993 (207)
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
doaj +1 more source
Simulating Brownian suspensions with fluctuating hydrodynamics [PDF]
The Journal of Chemical Physics, 2015 Fluctuating hydrodynamics has been successfully combined with several computational methods to rapidly compute the correlated random velocities of Brownian particles. In the overdamped limit where both particle and fluid inertia are ignored, one must also account for a Brownian drift term in order to successfully update the particle positions.
Blaise Delmotte, Eric E. Keaveny
openaire +5 more sources
Linking 1D Stellar Evolution to 3D Hydrodynamical Simulations [PDF]
, 2014 In this contribution we present initial results of a study on convective boundary mixing (CBM) in massive stellar models using the GENEVA stellar evolution code.
Arnett, David +5 more
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Stellar feedback from HMXBs in cosmological hydrodynamical simulations [PDF]
, 2015 We explored the role of X-ray binaries composed by a black hole and a massive stellar companion (BHXs) as sources of kinetic feedback by using hydrodynamical cosmological simulations. Following previous results, our BHX model selects low metal-poor stars
Artale, M. C. +2 more
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Granular clustering in a hydrodynamic simulation [PDF]
Physical Review E, 2003 4 pages, 5 ...
Hill, Scott A., Mazenko, Gene F.
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The El Gordo Galaxy Cluster Challenges ΛCDM for Any Plausible Collision Velocity
The Astrophysical Journal, 2023 El Gordo (ACT-CL J0102-4915) is an extraordinarily large and bright galaxy cluster collision. In a previous study, we found that El Gordo is in 6.2 σ tension with the Λ cold dark matter (ΛCDM) standard model when assuming the nominal mass and infall ...
Elena Asencio +2 more
doaj +1 more source
Hydrodynamic simulations of galaxy formation [PDF]
AIP Conference Proceedings, 1995 4 pages, uuencoded compressed postscript with ...
openaire +3 more sources
Hydrodynamic simulations of self-phoretic microswimmers [PDF]
Soft Matter, 2014 A mesoscopic hydrodynamic model to simulate synthetic self-propelled Janus particles which is thermophoretically or diffusiophoretically driven is here developed. We first propose a model for a passive colloidal sphere which reproduces the correct rotational dynamics together with strong phoretic effect.
Yang, Mingcheng +2 more
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Full hydrodynamic simulation of GaAs MESFETs [PDF]
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 2004 AbstractA finite difference upwind discretization scheme in two dimensions is presented in detail for the transient simulation of the highly coupled non‐linear partial differential equations of the full hydrodynamic model, providing thereby a practical engineering tool for improved charge carrier transport simulations at high electric fields and ...
Aste, Andreas +2 more
openaire +3 more sources
On the origin of non self-gravitating filaments in the ISM [PDF]
, 2013 {Filaments are ubiquitous in the interstellar medium as recently emphasized by Herschel, yet their physical origin remains elusive} {It is therefore important to understand the physics of molecular clouds to investigate how filaments form and what is the
Hennebelle, Patrick
core +6 more sources