360 citations · 2.5k across the 52 of their papers we have counts for
52 papers
Action based approach to dissipative relativistic fluid systems
G. L. Comer, N. Andersson, T. Celora +1
We develop an action principle for a relativistic two-fluid system with dissipation. The specific constituents of the model - which serves as a proof of principle - are particles a…
Higher-level large-eddy filtering strategy for general relativistic fluid simulations
Thomas Celora, Nils Andersson, Ian Hawke +2
Nonlinear simulations of neutron star mergers are complicated by the need to represent turbulent dynamics. As we cannot (yet) perform simulations that resolve accurately both the g…
Local magneto-shear instability in Newtonian gravity
T. Celora, I. Hawke, N. Andersson +1
The magneto-rotational instability (MRI) - which is due to an interplay between a sheared background and the magnetic field - is commonly considered a key ingredient for developing…
Formulating bulk viscosity for neutron star simulations
T. Celora, I. Hawke, P. C. Hammond +2
In order to extract the precise physical information encoded in the gravitational and electromagnetic signals from powerful neutron-star merger events, we need to include as much o…
The physics of non-ideal general relativistic magnetohydrodynamics
N. Andersson, I. Hawke, T. Celora +1
We consider a framework for non-ideal magnetohydrodynamics in general relativity, paying particular attention to the physics involved. The discussion highlights the connection betw…
A covariant approach to relativistic large-eddy simulations: The fibration picture
Thomas Celora, Nils Andersson, Ian Hawke +1
Models of turbulent flows require the resolution of a vast range of scales, from large eddies to small-scale features directly associated with dissipation. As the required resoluti…