Heat transfer in rapidly rotating convection with heterogeneous thermal boundary conditions
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.539
Abstract: Convection in the metallic cores of terrestrial planets is likely to be subjected to lateral variations in heat flux through the outer boundary imposed by creeping flow in the overlying silicate mantles. Boundary anomalies can… read more here.
Keywords: convection; rotating convection; heat transfer; heat ... See more keywords
Librational forcing of a rapidly rotating fluid-filled cube
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2018.157
Abstract: The flow response of a rapidly rotating fluid-filled cube to low-amplitude librational forcing is investigated numerically. Librational forcing is the harmonic modulation of the mean rotation rate. The rotating cube supports inertial waves which may… read more here.
Keywords: fluid filled; fluid; librational forcing; rotation ... See more keywords
Subcritical turbulent condensate in rapidly rotating Rayleigh–Bénard convection
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2019.58
Abstract: The possibility of subcritical behaviour in the geostrophic turbulence regime of rapidly rotating thermally driven convection is explored. In this regime a non-local inverse energy transfer may compete with the more traditional and local direct… read more here.
Keywords: convection; turbulent condensate; condensate rapidly; rotating rayleigh ... See more keywords
On the inverse cascade and flow speed scaling behaviour in rapidly rotating Rayleigh–Bénard convection
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2020.1058
Abstract: Abstract Rotating Rayleigh–Bénard convection is investigated numerically with the use of an asymptotic model that captures the rapidly rotating, small Ekman number limit, $Ek \rightarrow 0$. The Prandtl number ($Pr$) and the asymptotically scaled Rayleigh… read more here.
Keywords: kinetic energy; convection; rotating rayleigh; number ... See more keywords
Transport of angular momentum by stochastically excited waves as an explanation for the outburst of the rapidly rotating Be star HD49330
Sign Up to like & getrecommendations! Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201935858
Abstract: Context. HD 49330 is an early Be star that underwent an outburst during its five-month observation with the CoRoT satellite. An analysis of its light curve revealed several independent p and g pulsation modes, in… read more here.
Keywords: explanation; stochastically excited; angular momentum; transport angular ... See more keywords
The geostrophic regime of rapidly rotating turbulent convection
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Turbulence"
DOI: 10.1080/14685248.2021.1876877
Abstract: Rotating Rayleigh–Bénard convection is a simple model system used to study the interplay of buoyant forcing and rotation. Many recent studies have focused on the geostrophic regime of turbulent rotating convection where the principal balance… read more here.
Keywords: regime rapidly; convection; rotating turbulent; geostrophic regime ... See more keywords
Rapidly rotating compact stars in Rastall’s gravity
Sign Up to like & getrecommendations! Published in 2021 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ac129d
Abstract: In this work we study rapidly rotating stars by considering the Rastall theory of gravity. We obtain and solve the equations by numerical methods for two usual parametrization of polytropic stars. Then the mass–radius relations,… read more here.
Keywords: stars rastall; rotating compact; compact stars; gravity rapidly ... See more keywords
Co-existence and switching between fast and Ω-slow wind solutions in rapidly rotating massive stars
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty678
Abstract: Most radiatively-driven massive star winds can be modelled with m-CAK theory resulting in so called fast solution. However, those most rapidly rotating among them, especially when the stellar rotational speed is higher than $\sim 75\%$… read more here.
Keywords: existence; region; solution; omega slow ... See more keywords
Characterization of columnar inertial modes in rapidly rotating spheres and spheroids
Sign Up to like & getrecommendations! Published in 2017 at "Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences"
DOI: 10.1098/rspa.2017.0181
Abstract: We consider fluid-filled spheres and spheroidal containers of eccentricity ϵ in rapid rotation, as a proxy for the interior dynamics of stars and planets. The fluid motion is assumed to be quasi-geostrophic (QG): horizontal motions… read more here.
Keywords: columnar inertial; inertial modes; rotating spheres; modes rapidly ... See more keywords
Universal relations for rapidly rotating neutron stars using supervised machine-learning techniques
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review D"
DOI: 10.1103/physrevd.107.103050
Abstract: As some of the most compact stellar objects in the universe, neutron stars are unique cosmic laboratories. The study of neutron stars provides an ideal theoretical testbed for investigating both physics at supra-nuclear densities as… read more here.
Keywords: relations rapidly; neutron stars; rapidly rotating; machine learning ... See more keywords
Physical objects approaching the Cauchy horizon of a rapidly rotating Kerr black hole
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.104024
Abstract: We solve the 2+1-dimensional Teukolsky equation numerically for the Weyl scalars $\psi_0$ and $\psi_4$ along a time-like geodesic approaching the Cauchy horizon of a rapidly rotating perturbed Kerr black hole. We find that both the… read more here.
Keywords: cauchy horizon; horizon rapidly; approaching cauchy; cauchy ... See more keywords