GPU-accelerated iterative Poisson solvers for self-gravity are implemented and tested in Astaroth, achieving convergence and timing performance comparable to existing methods while supporting production-scale astrophysical runs.
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Oblique filament collisions lead to gravitational collapse of the compressed cloud when post-collision |gravitational energy| exceeds kinetic plus thermal plus magnetic energies, with lower angles and lower velocities favoring hub-filament formation.
Constrained transport outperforms Dedner's divergence cleaning in MHD simulations by avoiding spurious artifacts when magnetic fields are localized or timesteps vary suddenly.
citing papers explorer
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Iterative Poisson Solvers for Self-gravity with the GPU Code Astaroth
GPU-accelerated iterative Poisson solvers for self-gravity are implemented and tested in Astaroth, achieving convergence and timing performance comparable to existing methods while supporting production-scale astrophysical runs.
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Evolution of compressed clouds formed by filament coalescence. I. Oblique collisions
Oblique filament collisions lead to gravitational collapse of the compressed cloud when post-collision |gravitational energy| exceeds kinetic plus thermal plus magnetic energies, with lower angles and lower velocities favoring hub-filament formation.
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Systematic Comparison between Constrained Transport and Mixed Divergence Cleaning Methods for Astrophysical Magnetohydrodynamic Simulations
Constrained transport outperforms Dedner's divergence cleaning in MHD simulations by avoiding spurious artifacts when magnetic fields are localized or timesteps vary suddenly.