33 citations · 80 across the 11 of their papers we have counts for
11 papers
Multiple critical Froude numbers for the centrifugal effects on heat transport in rotating Rayleigh-Bénard convection
Zhi-Cong Kang, Guang-Yu Ding, Lu Zhang +1
The influence of centrifugal effects in rotating Rayleigh-Benard convection is investigated using direct numerical simulations. We find that the Nusselt number decreases beyond a c…
Scale-dependent force balance governs transition to the geostrophic regime in liquid metal rotating convection
Shao-Peng Yang, Lin Sun, Guang-Yu Ding +2
Rotating convection in low-Prandtl-number liquid metal drives dynamo action in the Earth's outer core and is central to planetary interior dynamics. It has been proposed that flow…
Scale-invariance and characteristic length scale for the large-scale vortices in geostrophic convective turbulence with friction
Guang-Yu Ding, Tian-Yi Pei, Hang-Yu Zhu +1
In geostrophic convective turbulence, large-scale vortices (LSVs) emerge through upscale energy transfer and are commonly regulated by large-scale friction. Yet the role of frictio…
Symmetry Breaking and Restoration in Turbulent Thermal Convection Arises from the Competition Between Advection and Buoyancy
Guang-Yu Ding, Fang Xu, Ke-Qing Xia
Spontaneous symmetry breaking (SSB) remains poorly understood in thermal convection, but hints may be found from its restoration. We hereby compare the two convection systems: expe…
Vortex Dynamics in Rotating Rayleigh-Bénard Convection
Shan-Shan Ding, Guang-Yu Ding, Kai Leong Chong +3
We investigate the spatial distribution and dynamics of the vortices in rotating Rayleigh-Bénard convection in a reduced Rayleigh-number range . Under sl…
Inverse centrifugal effect induced by collective motion of vortices in rotating turbulent convection
Shan-Shan Ding, Kai Leong Chong, Jun-Qiang Shi +4
When a fluid system is subject to strong rotation, centrifugal fluid motion is expected, i.e., denser (lighter) fluid moves outward (inward) from (toward) the axis of rotation. Her…
Heat transport scaling and transition in geostrophic rotating convection with varying aspect ratio
Hao-Yuan Lu, Guang-Yu Ding, Jun-Qiang Shi +2
We present high-precision experimental and numerical studies of the Nusselt number as functions of the Rayleigh number in geostrophic rotating convection with domain aspe…
Anomalous vortex motion induced by asymmetric vorticity distribution in rapidly rotating thermal convection
Shan-Shan Ding, Kai Leong Chong, Jun-Qiang Shi +4
In rotating Rayleigh-Bénard convection, columnar vortices advect horizontally in a stochastic manner. When the centrifugal buoyancy is present the vortices exhibit radial motions t…
Crossover from ballistic to diffusive vortex motion in convection
Kai Leong Chong, Jun-Qiang Shi, Shanshan Ding +4
Vortices play an unique role in heat and momentum transports in astro- and geo-physics, and it is also the origin of the Earth's dynamo. A question existing for a long time is whet…
Quasistatic magnetoconvection: Heat transport enhancement and boundary layer crossing
Zi Li Lim, Kai Leong Chong, Guang-Yu Ding +1
We present a numerical study of quasistatic magnetoconvection in a cubic Rayleigh-Bénard (RB) convection cell subjected to a vertical external magnetic field. For moderate values o…
Multiple-resolution scheme in finite-volume code for active or passive scalar turbulence
Kai Leong Chong, Guangyu Ding, Ke-Qing Xia
In scalar turbulence it is sometimes the case that the scalar diffusivity is smaller than the viscous diffusivity. The thermally-driven turbulent convection in water is a typical e…