Forrest Glines
Forrest Glines
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Magnetized decaying turbulence in the weakly compressible Taylor-Green vortex
Magnetohydrodynamic (MHD) turbulence affects both terrestrial and astrophysical plasmas. The properties of magnetized turbulence must be better understood to more accurately characterize these systems. This work presents ideal MHD simulations of the compressible Taylor-Green vortex under a range of initial subsonic Mach numbers and magnetic field strengths.
Forrest Glines
,
Philipp Grete
,
Brian W. O'Shea
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DOI
Environmental Dependence of Self-regulating Black Hole Feedback in Massive Galaxies
In the universe’s most massive galaxies, active galactic nucleus (AGN) feedback appears to limit star formation. The accumulation of cold gas near the central black hole fuels powerful AGN outbursts, keeping the ambient medium in a state marginally unstable to condensation and formation of cold gas clouds.
Deovrat Prasad
,
G. Mark Voit
,
Brian W. O'Shea
,
Forrest Glines
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DOI
Tests of AGN Feedback Kernels in Simulated Galaxy Clusters
In cool-core galaxy clusters with central cooling times much shorter than a Hubble time, condensation of the ambient central gas is regulated by a heating mechanism, probably an active galactic nucleus.
Forrest Glines
,
Brian W. O'Shea
,
G. Mark Voit
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DOI
K-Athena: a performance portable structured grid finite volume magnetohydrodynamics code
Large scale simulations are a key pillar of modern research and require ever-increasing computational resources. Different novel manycore architectures have emerged in recent years on the way towards the exascale era.
Philipp Grete
,
Forrest Glines
,
Brian W. O'Shea
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DOI
Scalable Relativistic High-Resolution Shock-Capturing for Heterogeneous Computing
A shift is underway in high performance computing (HPC) towards heterogeneous parallel architectures that emphasize medium and fine grain thread parallelism. Many scientific computing algorithms, including simple finite-differencing methods, have already been mapped to heterogeneous architectures with order-of-magnitude gains in performance as a result.
Forrest Glines
,
Matthew Anderson
,
David Neilsen
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DOI
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