Results 11 to 20 of about 258,357 (262)

Makemake + Sedna: A Continuum Radiation Transport and Photoionization Framework for Astrophysical Newtonian Fluid Dynamics [PDF]

open access: bronzeAstrophysical Journal Supplement Series, 2020
Astrophysical fluid flow studies often encompass a wide range of physical processes to account for the complexity of the system under consideration. In addition to gravity, a proper treatment of thermodynamic processes via continuum radiation transport ...
Rolf Kuiper   +2 more
openalex   +3 more sources

Collapsing dynamics of relativistic fluid in modified gravity admitting a conformal Killing vector [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The collapsing dynamics of relativistic fluid are explored in f(R) gravity in detailed systematic manner for the non-static spherically symmetric spacetime satisfying the equation of the conformal Killing vector.
Kazuharu Bamba   +4 more
doaj   +2 more sources

THE PLUTO CODE FOR ADAPTIVE MESH COMPUTATIONS IN ASTROPHYSICAL FLUID DYNAMICS [PDF]

open access: bronzeThe Astrophysical Journal Supplement Series, 2011
We present a description of the adaptive mesh refinement (AMR) implementation of the PLUTO code for solving the equations of classical and special relativistic magnetohydrodynamics (MHD and RMHD). The current release exploits, in addition to the static grid version of the code, the distributed infrastructure of the CHOMBO library for multidimensional ...
A. Mignone   +5 more
openalex   +7 more sources

Multiscale Vortex Structures in Computational Fluid Dynamics and Astrophysics

open access: yesProceedings of the 33rd International Conference on Computer Graphics and Vision, 2023
The need for effective postprocessor analysis of the results of extensive calculations on supercomputers remains extremely high when using new complex computing systems in modeling super- and hypersonic gas flows, predictive modeling of heat and mass transfer processes in jet engines and new energy devices, in solving multiscale problems for ...
V.D. Goryachev
openaire   +2 more sources

Xeonphi Meets Astrophysical Fluid Dynamics

open access: green, 2014
This white paper reports on ours e orts to optimize a 2D/3D astrophysical (magento-)hydrodynamics Fortran code for XeonPhi. The code is parallelized with OpenMP and is suitable for execution on a shared memory system. Due to complexity of the code combined with immaturity of compiler we were unable to stay within the boundaries of Intel Compiler Suite.
Evghenii Gaburov
openalex   +2 more sources

Piecewise-Parabolic Methods for Astrophysical Fluid Dynamics [PDF]

open access: yes, 1986
A general description of some modern numerical techniques for the simulation of astrophysical fluid flow is presented. The methods are introduced with a thorough discussion of the especially simple case of advection. Attention is focussed on the piecewise-parabolic method (PPM).
P. Woodward
openaire   +2 more sources

General numerical fluid dynamics algorithm for astrophysical applications [PDF]

open access: green, 1975
Finite difference simulation of fluid flows under astrophysical conditions is often complicated by factors such as complex gas physics, the occurrence of dynamics at widely differing length scales, and the necessity of using implicit difference equations.
H.M. Ruppel, L. D. Cloutman
openalex   +4 more sources

Astrophysical applications of a boundary integral method for fluid dynamics [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 1999
A boundary integral formulation for the dynamics of incompressible, inviscid, self-gravitating bodies is described. The method is applied to several problems of astrophysical interest: spheroidal equilibria (Maclaurin and Jeans), oscillations, and a simple version of tidal encounter and breakup.
D. G. Korycansky
openalex   +2 more sources

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