Direct numerical simulation of shock-wave/boundary layer interaction controlled with convergent–divergent riblets
In this paper, a section of convergent–divergent (C–D) riblets is applied upstream of a
compression ramp in a supersonic turbulent boundary layer in a Mach 2.9 flow with a …
compression ramp in a supersonic turbulent boundary layer in a Mach 2.9 flow with a …
Ultra-local model-based control of the square-back Ahmed body wake flow
This paper presents a new model-free control approach applied to a dynamical fluidic
system. The main objective is to evaluate the ability of this closed-loop control technique to …
system. The main objective is to evaluate the ability of this closed-loop control technique to …
Control of flow separation from a curved ramp using a steady-blowing jet
S He, K Zhang, Y Song, Y Zhou - Physics of Fluids, 2023 - pubs.aip.org
This work experimentally investigates flow separation control over a two-dimensional curved
ramp using a spanwise steady-blowing slit jet. The flow separation and reattachment are first …
ramp using a spanwise steady-blowing slit jet. The flow separation and reattachment are first …
Supercritical flow overpassing forward-or backward-facing steps non-orthogonal to the flow direction
The work proposes and discusses a theoretical approach to predict the behavior of an open-
channel supercritical flow that overpasses a step, either forward or backward facing, non …
channel supercritical flow that overpasses a step, either forward or backward facing, non …
Experimental study on secondary flow in turbulent boundary layer over spanwise heterogeneous microgrooves
Convergent–divergent riblets (C–D riblets) are a type of grooved surface pattern with
directionality and spanwise heterogeneity. In the cross-stream plane, we apply stereoscopic …
directionality and spanwise heterogeneity. In the cross-stream plane, we apply stereoscopic …
Direct numerical simulation of a tip-leakage flow in a planar duct with a longitudinal slit
A planar duct flow configuration with a cross-flow injected from a longitudinal slit close to the
upper wall of the duct is studied by using a direct numerical simulation approach to explore …
upper wall of the duct is studied by using a direct numerical simulation approach to explore …
Direct numerical simulations of a turbulent channel flow developing over convergent–divergent riblets
Direct numerical simulations of a turbulent channel flow developing over convergent–
divergent (C–D) riblets at a Reynolds number of R eb= 2800 are presented. It is found that …
divergent (C–D) riblets at a Reynolds number of R eb= 2800 are presented. It is found that …
Control of laminar flow separation over a backward-facing rounded ramp with CD riblets–the effects of riblet height, spacing and yaw angle
T Guo, S Zhong, T Craft - International Journal of Heat and Fluid Flow, 2020 - Elsevier
In the work presented in this paper, a section of convergent-divergent (CD) riblets is applied
upstream of a backward-facing rounded ramp in a fully developed laminar channel flow at a …
upstream of a backward-facing rounded ramp in a fully developed laminar channel flow at a …
Energy-based drag decomposition analyses for a turbulent channel flow developing over convergent–divergent riblets
Direct numerical simulations of a turbulent channel flow developing over convergent–
divergent (C–D) riblets are performed at a Reynolds number of Re b= 2800, based on the …
divergent (C–D) riblets are performed at a Reynolds number of Re b= 2800, based on the …
Mathematical model and analysis method for flowfield separation and transition
P Yue, J Xiao, K Xu, M Li, F Jiang, Y Lu, D Peng - Physics of Fluids, 2021 - pubs.aip.org
Transition and separation are difficult but important problems in the field of fluid mechanics.
Hitherto, separation and transition problems have not been described accurately in …
Hitherto, separation and transition problems have not been described accurately in …