39 citations · 82 across the 8 of their papers we have counts for
8 papers · 1 filter
Revisit eddy viscosity in pressure-driven wall turbulence at high Reynolds number
Ben-Rui Xu, Ao Xu
We investigate eddy-viscosity distributions in pressure-driven wall turbulence for three canonical configurations: plane closed-channel flow, open-channel flow with a free-slip sur…
Learning to traverse convective flows at moderate to high Rayleigh numbers
Ao Xu, Hua-Lin Wu, Ben-Rui Xu +1
We study the navigation of a self-propelled inertial particle in two-dimensional Rayleigh-Bénard convection at Prandtl number and cell aspect ratio for Rayleigh num…
Buoyancy-induced velocity dip in turbulent open Poiseuille--Rayleigh--Bénard convection
Ben-Rui Xu, Ao Xu, Heng-Dong Xi
We investigate buoyancy-induced transitions in flow structure and the associated velocity dip in turbulent mixed convection. Numerical simulations are performed for an open Poiseui…
Interpolation-supplemented lattice Boltzmann simulation of thermal convection on non-uniform meshes
Ao Xu, Zheng Zhao, Ben-Rui Xu +1
We present a systematic evaluation of an interpolation-supplemented lattice Boltzmann method (ISLBM) for simulating buoyancy-driven thermal convection on non-uniform meshes. The IS…
Particle transport and deposition in wall-sheared thermal turbulence
Ao Xu, Ben-Rui Xu, Heng-Dong Xi
We studied the transport and deposition behaviour of point particles in Rayleigh-Bénard convection cells subjected to Couette-type wall shear. Direct numerical simulations (DNSs) a…
Pore-scale statistics of temperature and thermal energy dissipation rate in turbulent porous convection
Ao Xu, Ben-Rui Xu, Heng-Dong Xi
We report pore-scale statistical properties of temperature and thermal energy dissipation rate in a two-dimensional porous Rayleigh-Bénard (RB) cell. High-resolution direct numeric…
Wall-sheared thermal convection: heat transfer enhancement and turbulence relaminarization
Ao Xu, Ben-Rui Xu, Heng-Dong Xi
We studied the flow organization and heat transfer properties in two-dimensional and three-dimensional Rayleigh-Bénard cells that are imposed with different types of wall shear. Th…
Production and transport of vorticity in two-dimensional Rayleigh-Bénard convection cell
Ao Xu, Ben-Rui Xu, Li-Sheng Jiang +1
We present a numerical study of vorticity production and transport in the two-dimensional Rayleigh-Bénard (RB) convection. Direct numerical simulations are carried out in the Rayle…