Superhydrophobic drag reduction in turbulent flows: A critical review
Superhydrophobic (SHPo) surfaces have been investigated vigorously since around 2000
due in large part to their unique potential for hydrodynamic frictional drag reduction without …
due in large part to their unique potential for hydrodynamic frictional drag reduction without …
Fabrication of durable superhydrophobic surfaces using PDMS and beeswax for drag reduction of internal turbulent flow
Nowadays, one of the biggest concerns in the world is increasing the CO 2 emissions and
global warming due to the over-consumption of fossil fuels. In addition, under the intense …
global warming due to the over-consumption of fossil fuels. In addition, under the intense …
Hydrodynamic noise reduction mechanism of a superhydrophobic surface with different slip velocities
C Niu, Y Liu, D Shang, Q Qin, W Liu - Journal of Sound and Vibration, 2022 - Elsevier
Although superhydrophobic surfaces can change the flow regime of the boundary layer,
most studies have focused on microscale channel flow. In this work, we use the slip …
most studies have focused on microscale channel flow. In this work, we use the slip …
Drag reduction of turbulent boundary layer over sawtooth riblet surface with superhydrophobic coat
J Hu, Z Yao - Physics of Fluids, 2023 - pubs.aip.org
The application of drag reduction tech holds great significance to energy saving. To achieve
better drag reduction, we investigated the flow characteristics of the turbulent boundary layer …
better drag reduction, we investigated the flow characteristics of the turbulent boundary layer …
Active control for drag reduction of turbulent channel flow based on convolutional neural networks
BZ Han, WX Huang - Physics of Fluids, 2020 - pubs.aip.org
An active controller based on convolutional neural networks (CNNs) is designed for drag
reduction of turbulent channel flow. CNNs are constructed to predict the normal velocities on …
reduction of turbulent channel flow. CNNs are constructed to predict the normal velocities on …
Drag reduction induced by superhydrophobic surfaces in turbulent pipe flow
The drag reduction induced by superhydrophobic surfaces is investigated in a turbulent pipe
flow. Wetted superhydrophobic surfaces are shown to trap gas bubbles in their asperities …
flow. Wetted superhydrophobic surfaces are shown to trap gas bubbles in their asperities …
Reynolds number effect on drag control via spanwise wall oscillation in turbulent channel flows
The effect of Reynolds number (Re τ) on drag reduction using spanwise wall oscillation is
studied through direct numerical simulation of incompressible turbulent channel flows with …
studied through direct numerical simulation of incompressible turbulent channel flows with …
Turbulent drag reduction in Taylor-Couette flows using different super-hydrophobic surface configurations
Turbulent drag reduction (DR) in an incompressible Taylor-Couette flow configuration using
different patterns of “idealized” superhydrophobic surfaces (SHS) on rotating inner-wall is …
different patterns of “idealized” superhydrophobic surfaces (SHS) on rotating inner-wall is …
Sustainability of the plastron on nano-grass-covered micro-trench superhydrophobic surfaces in high-speed flows of open water
This paper studies the sustainability of plastrons on superhydrophobic (SHPo) surfaces
made of longitudinal micro-trenches covered by nano-grass with the main interest on …
made of longitudinal micro-trenches covered by nano-grass with the main interest on …
[HTML][HTML] Superhydrophobic surfaces to reduce form drag in turbulent separated flows
The drag force acting on a body moving in a fluid has two components, friction drag due to
fluid viscosity and form drag due to flow separation behind the body. When present, form …
fluid viscosity and form drag due to flow separation behind the body. When present, form …