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Astrophysical Fluid Dynamics via Direct Statistical Simulation [PDF]
The Astrophysical Journal, 2010 In this paper we introduce the concept of Direct Statistical Simulation (DSS) for astrophysical flows. This technique may be appropriate for problems in astrophysical fluids where the instantaneous dynamics of the flows are of secondary importance to ...
Brun +23 more
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Geophysical and astrophysical fluid dynamics beyond the traditional approximation [PDF]
Reviews of Geophysics, 2008 In studies on geophysical fluid dynamics, it is common practice to take the Coriolis force only partially into account by neglecting the components proportional to the cosine of latitude, the so‐called traditional approximation (TA). This review deals with the consequences of abandoning the TA, based on evidence from numerical and theoretical studies ...
Gerkema, T. +3 more
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Particle Methods in Astrophysical Fluid Dynamics [PDF]
Progress of Theoretical Physics Supplement, 2000 13 pages, to appear in proceedings of the 5th International Conference on Computational Physics (ICCP5), held in Kanazawa, Japan, Oct 11-13, 1999 (special issue of Progress of Theoretical Physics)
Frederic A Rasio
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Tidally Forced Planetary Waves in the Tachocline of Solar-like Stars
The Astrophysical Journal, 2023 Can atmospheric waves in planet-hosting solar-like stars substantially resonate to tidal forcing, perhaps at a level of impacting the space weather or even being dynamo-relevant?
Gerrit M. Horstmann +4 more
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Formulating the r-mode Problem for Slowly Rotating Neutron Stars
The Astrophysical Journal, 2023 We revisit the problem of inertial r-modes in stratified stars, drawing on a more precise description of the composition stratification in a mature neutron star.
Nils Andersson, Fabian Gittins
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Astrophysical fluid dynamics [PDF]
Journal of Plasma Physics, 2016 These lecture notes and example problems are based on a course given at the University of Cambridge in Part III of the Mathematical Tripos. Fluid dynamics is involved in a very wide range of astrophysical phenomena, such as the formation and internal dynamics of stars and giant planets, the workings of jets and accretion discs around stars and black ...
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Planetesimal Initial Mass Functions Following Diffusion-regulated Gravitational Collapse
The Astrophysical Journal, 2023 The initial mass function (IMF) of planetesimals is of key importance for understanding the initial stages of planet formation, yet theoretical predictions so far have been insufficient in explaining the variety of IMFs found in simulations.
Konstantin Gerbig, Rixin Li
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Computational Astrophysical Fluid Dynamics [PDF]
Computers in Physics, 1991 The field of astrophysical fluid dynamics (AFD) is described as an emerging discipline which derives historically from both the theory of stellar evolution and space plasma physics. The fundamental physical assumption behind AFD is that fluid equations of motion accurately describe the evolution of plasmas on scales that are large in comparison with ...
Michael L. Norman +2 more
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The Astrophysical Journal, 2023 Due to the prevalence of magnetic fields in astrophysical environments, magnetohydrodynamic (MHD) simulation has become a basic tool for studying astrophysical fluid dynamics.
Jeongbhin Seo, Dongsu Ryu
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On Secular Gravitational Instability in Vertically Stratified Disks
The Astrophysical Journal, 2023 Secular gravitational instability (GI) is one promising mechanism for explaining planetesimal formation. Previous studies of secular GI utilized a razor-thin disk model and derived the growth condition in terms of vertically integrated physical values ...
Ryosuke T. Tominaga +2 more
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