75 citations · 376 across the 17 of their papers we have counts for
10 papers · 1 filter
Scaling behaviour of rotating convection in a spherical shell with different Prandtl numbers
Wei Fan, Qi Wang, Yufeng Lin
Rayleigh-Benard convection in a rotating spherical shell provides a simplified model for convective dynamics of planetary and stellar interiors. In this study, we build more than 2…
Weakening the effect of boundaries: `diffusion-free' boundary conditions as a `do least harm' alternative to Neumann
Yufeng Lin, Rich Kerswell
In this note, we discuss a poorly known alternative boundary condition to the usual Neumann or `stress-free' boundary condition typically used to weaken boundary layers when diffus…
Resonant tidal responses in rotating fluid bodies: global modes hidden beneath localized wave beams
Yufeng Lin, Gordon I. Ogilvie
In rotating stars and planets, excitation of inertial waves in convective envelopes provides an important channel for tidal dissipation, but the dissipation rate due to inertial wa…
Triadic resonances driven by thermal convection in a rotating sphere
Yufeng Lin
We report for the first time on triadic resonances in a rotating convection system. Using direct numerical simulations, we find that convective modes in a rotating spherical fluid…
Large-scale vortices and zonal flows in spherical rotating convection
Yufeng Lin, Andrew Jackson
Motivated by understanding the dynamics of stellar and planetary interiors, we have performed a set of direct numerical simulations of Boussinesq convection in a rotating full sphe…
Libration-driven inertial waves and mean zonal flows in spherical shells
Yufeng Lin, Jerome Noir
Several planetary bodies in our solar system undergo a forced libration owing to gravitational interactions with their orbital companions, leading to complex fluid motions in their…
Shear-driven parametric instability in a precessing sphere
Yufeng Lin, Philippe Marti, Jerome Noir
The present numerical study aims at shedding light on the mechanism underlying the precessional instability in a sphere. Precessional instabilities in the form of parametric resona…
Precession-driven dynamos in a full sphere and the role of large scale cyclonic vortices
Yufeng Lin, Philippe Marti, Jerome Noir +1
Precession has been proposed as an alternative power source for planetary dynamos. Previous hydrodynamic simulations suggested that precession can generate very complex flows in pl…
Experimental study of fluid flows in a precessing cylindrical annulus
Yufeng Lin, Jerome Noir, Andrew Jackson
The flow inside a precessing fluid cavity has been given particular attention since the end of the 19th century in geophysical and industrial contexts. The present study aims at sh…
Inertial wave and zonal flow in librating spherical shells
Yufeng Lin, Jerome Noir, Michael A. Calkin
We numerically study the inertial waves and zonal flows in spherical shells driven by longitudinal libration, an oscillatory variation of rotation rate. Internal shear layers are g…