75 citations · 376 across the 17 of their papers we have counts for
18 papers
Regime transitions of dynamos driven by fingering double-diffusive convection
Wei Fan, YufengLin
Long-term cooling of planetary interiors is expected to progressively establish thermally stable stratification in the liquid outer core, yet its influence on dynamo action remains…
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…
Dynamos driven by top-heavy double-diffusive convection in the strong-field regime
Wei Fan, Yufeng Lin
The magnetic fields of terrestrial planets are generated in their liquid cores through dynamo action driven by thermal and compositional convection. The coexistence of these two bu…
Ocean Tides on Asynchronously Rotating Planets Orbiting Low-mass Stars
Jiaru Shi, Jun Yang, Dorian S. Abbot +3
Planets in the liquid-water habitable zone of low-mass stars experience large tidal forces, to times those on Earth, due to the small distance between the habitable z…
Numerical Simulations of Magnetic Effects on Zonal Flows in Giant Planets
Shanshan Xue, Yufeng Lin
Jupiter and Saturn exhibit alternating east-west jet streams as seen from surface. The origin of these zonal flows has been debated for decades. The high-precision gravity measurem…
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…
Dynamical tides in Jupiter and the role of interior structure
Yufeng Lin
Context. The Juno spacecraft has obtained highly accurate tidal Love numbers, which provide important constraints on the tidal response and interior structure of Jupiter. Aims. In…
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…
Ohmic dissipation in the Earth's outer core resulting from the free inner core nutation
Yufeng Lin, Gordon Ogilvie
The diurnal tidal forces can excite a normal mode of the Earth's core, the free inner core nutation (FICN), which is characterized by a tilt of the rotation axis of the inner core…
Tidal dissipation in rotating fluid bodies: the presence of a magnetic field
Yufeng Lin, Gordon I. Ogilvie
We investigate effects of the presence of a magnetic field on tidal dissipation in rotating fluid bodies. We consider a simplified model consisting of a rigid core and a fluid enve…
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…
Tidal interactions in spin-orbit misaligned systems
Yufeng Lin, Gordon Ogilvie
Spin-orbit misalignments have been detected in exoplanetary systems and binary star systems. Tidal interactions may have played an important role in the evolution of the spin-orbit…
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…