From sheared annular centrifugal Rayleigh–Bénard convection to radially heated Taylor–Couette flow: exploring the impact of buoyancy and shear on heat transfer …

J Zhong, D Wang, C Sun - Journal of Fluid Mechanics, 2023 - cambridge.org
We investigate the coupling effect of buoyancy and shear based on an annular centrifugal
Rayleigh–Bénard convection (ACRBC) system in which two cylinders rotate with an angular …

On the thermal effect of porous material in porous media Rayleigh–Bénard convection

J Zhong, S Liu, C Sun - Flow, 2023 - cambridge.org
We perform a two-dimensional numerical study on the thermal effect of porous media on
global heat transport and flow structure in Rayleigh–Bénard (RB) convection, focusing on …

Effects of radius ratio on annular centrifugal Rayleigh–Bénard convection

D Wang, H Jiang, S Liu, X Zhu, C Sun - Journal of Fluid Mechanics, 2022 - cambridge.org
We report on a three-dimensional direct numerical simulation study of flow structure and
heat transport in the annular centrifugal Rayleigh–Bénard convection (ACRBC) system, with …

Numerical study on turbulence modulation of finite-size particles in plane-Couette flow

C Wang, L Jiang, C Sun - Journal of Fluid Mechanics, 2023 - cambridge.org
Turbulent plane-Couette flow suspended with finite-size spheroidal particles is studied using
fully particle-resolved direct numerical simulations. The effects of particle aspect ratio on …

Heat transfer in porous media Rayleigh–Bénard convection at various Prandtl numbers

X Zang, J Zhong, C Sun - Physics of Fluids, 2023 - pubs.aip.org
We perform two-dimensional direct numerical simulations to study the effect of porous media
on global transport properties and flow structures in Rayleigh–Bénard (RB) convection at …

Dynamics of finite-size spheroids in turbulent flow: the roles of flow structures and particle boundary layers

L Jiang, C Wang, S Liu, C Sun… - Journal of Fluid …, 2022 - cambridge.org
We study the translational and rotational dynamics of neutrally buoyant finite-size spheroids
in hydrodynamic turbulence by means of fully resolved numerical simulations. We examine …

Effect of radius ratio on the sheared annular centrifugal turbulent convection

J Zhong, J Li, C Sun - arXiv preprint arXiv:2402.00779, 2024 - arxiv.org
We perform the linear stability analysis and direct numerical simulations to study the effect of
radius ratio on the instability and flow characteristics of the sheared annular centrifugal …

Tuning turbulent convection through rough element arrangement

J Wu, D Dong, B Wang, Y Dong, Q Zhou - Journal of Hydrodynamics, 2022 - Springer
The tuning of turbulent Rayleigh-Bénard (RB) convection in a box is realized numerically by
designed rough element arrangement. Considering the nonlinear dynamics of the thermal …