Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Vlaykov, Dimitar"'
Autor:
Morison, Adrien, Saux, Arthur Le, Baraffe, Isabelle, Morton, Jack, Guillet, Thomas, Vlaykov, Dimitar, Goffrey, Tom, Pratt, Jane
As a massive star evolves along the main sequence, its core contracts, leaving behind a stable stratification in helium. We simulate 2D convection in the core at three different stages of evolution of a $5M_{\odot}$ star, with three different stratif
Externí odkaz:
http://arxiv.org/abs/2407.06047
Autor:
Constantino, Thomas, Baraffe, Isabelle, Goffrey, Thomas, Pratt, Jane, Guillet, Thomas, Vlaykov, Dimitar, Amard, Louis
Publikováno v:
A&A 654, A146 (2021)
We compute rotating 1D stellar evolution models that include a modified temperature gradient in convection zones and criterion for convective instability inspired by rotating 3D hydrodynamical simulations performed with the MUSIC code. In those 3D si
Externí odkaz:
http://arxiv.org/abs/2108.10361
Publikováno v:
Journal of Fluid Mechanics, 887, A21 (2020)
Turbulent superstructures, i.e. large-scale flow structures in turbulent flows, play a crucial role in many geo- and astrophysical settings. In turbulent Rayleigh-B\'{e}nard convection, for example, horizontally extended coherent large-scale convecti
Externí odkaz:
http://arxiv.org/abs/1905.10278
Autor:
Vlaykov, Dimitar G., Wilczek, Michael
Publikováno v:
Journal of Fluid Mechanics, 861, (2019), 422-446
Understanding the small-scale structure of incompressible turbulence and its implications for the non-local pressure field is one of the fundamental challenges in fluid mechanics. Intense velocity gradient structures tend to cluster on a range of sca
Externí odkaz:
http://arxiv.org/abs/1810.06732
Publikováno v:
Phys. Rev. E 95, 033206 (2017)
Large eddy simulations (LES) are a powerful tool in understanding processes that are inaccessible by direct simulations due to their complexity, for example, in the highly turbulent regime. However, their accuracy and success depends on a proper subg
Externí odkaz:
http://arxiv.org/abs/1703.00858
Publikováno v:
Phys. Plasmas 23, 062316 (2016)
Compressible magnetohydrodynamic (MHD) turbulence is ubiquitous in astrophysical phenomena ranging from the intergalactic to the stellar scales. In studying them, numerical simulations are nearly inescapable, due to the large degree of nonlinearity i
Externí odkaz:
http://arxiv.org/abs/1606.02064
Autor:
Grete, Philipp, Vlaykov, Dimitar G, Schmidt, Wolfram, Schleicher, Dominik R G, Federrath, Christoph
Publikováno v:
New J. Phys. 17 (2015) 023070
Turbulence in compressible plasma plays a key role in many areas of astrophysics and engineering. The extreme plasma parameters in these environments, e.g. high Reynolds numbers, supersonic and super-Alfvenic flows, however, make direct numerical sim
Externí odkaz:
http://arxiv.org/abs/1501.07170
Publikováno v:
JCAP 05 (2013) 006
We derive oscillatory signals in correlation functions in two-field open inflation by means of the in-in formalism; such signatures are caused by resonances between oscillations in the tunnelling field and fluctuations in the inflaton during the curv
Externí odkaz:
http://arxiv.org/abs/1302.3877
Autor:
Le Saux, Arthur, Baraffe, Isabelle, Guillet, Thomas, Vlaykov, Dimitar, Morison, Adrien, Clark, Josh, Pratt, Jane, Goffrey, Tom, Réville, Victor, Brun, Allan Sacha
The importance of waves propagating in the stars is twofold. First, they offer a great opportunity to unveil stellar internal structure and dynamics thanks to the observation of oscillations modes of stars, this is the field of asteroseismology. Seco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1104302546f8c8e5472afa611ddcf89f
https://doi.org/10.5281/zenodo.7586382
https://doi.org/10.5281/zenodo.7586382