27 citations · 63 across the 9 of their papers we have counts for
9 papers · 1 filter
Three-dimensional sedimentation patterns of two interacting disks in a viscous fluid
Yi Liu, Yu Guo, Bo Yang +4
The sedimentation of two spherical solid objects in a viscous fluid has been extensively investigated and well understood. However, a pair of flat disks (in three dimensions) settl…
Enhancing large-scale motions and turbulent transport in rotating plane Poiseuille flow
Shengqi Zhang, Zhenhua Xia, Shiyi Chen
Based on the properties of large-scale plume currents, an injection/suction control strategy is introduced to enhance the strength of plume currents and the turbulent transport of…
Analysis on numerical stability and convergence of RANS turbulence models from the perspective of coupling modes
Yilang Liu, Weiwei Zhang, Zhenhua Xia
Reynolds-averaged Navier-Stokes simulations are still the main method to study complex flows in engineering. However, traditional turbulence models cannot accurately predict flow f…
Exact mathematical formulas for wall-heat flux in compressible turbulent channel flows
Peng Zhang, Yubin Song, Zhenhua Xia
In this paper, several exact expressions for the mean heat flux at the wall () for the compressible turbulent channel flows are derived by using the internal energy equation o…
Perturbation analysis of baroclinic torque in low-Mach-number flows
Shengqi Zhang, Zhenhua Xia, Shiyi Chen
In this paper, we propse a series expansion of the baroclinic torque in low-Mach-number flows, so that the accuracy and universality of any buoyancy term could be examined analytic…
Late-time description of immiscible Rayleigh-Taylor instability: A lattice Boltzmann study
Haowei Huang, Zhenhua Xia, Hong Liang +2
The late-time growth of single-mode immiscible Rayleigh-Taylor instability is investigated over a comprehensive range of the Reynolds numbers () and Atwood num…
On skin friction in wall-bounded turbulence
Zhenhua Xia, Peng Zhang, Xiang I. A. Yang
In this paper, we derive mathematical formulas for the skin friction coefficient in wall-bounded turbulence based on the Reynolds averaged streamwise momentum equation and the tota…
Bifurcation and multiple states in plane Couette flow with spanwise rotation
Xiang Yang, Zhenhua Xia
We present a derivation that begins with the Navier--Stokes equation and ends with a prediction of multiple statistically stable states identical to those observed in a spanwise ro…
Obtaining the mean fields with known Reynolds stresses at steady state
Xianwen Guo, Zhenhua Xia, Heng Xiao +2
With the rising of modern data science, data--driven turbulence modeling with the aid of machine learning algorithms is becoming a new promising field. Many approaches are able to…