5 papers
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…
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…
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…