The quest for reductions in fuel consumption and CO 2 emissions in transport has been a
powerful driving force for scientific research into methods that might underpin drag-reducing …

After a long period of biological evolution, natural creatures will inevitably evolve body
surfaces suitable for the living environment. The functions of natural biological surfaces are …

In the past decades, drag-reduction surfaces have attracted more and more attention due to
their potentiality and wide applications in various fields such as traffic, energy transportation …

In the race to curb energy and oil consumption, zeroing of wall frictional forces is highly
desirable. The turbulent skin friction drag at the solid/liquid interface is responsible for …

We have conducted large-eddy simulations of turbulent separated flows over a NACA0015
airfoil with control by a plasma actuator. The Reynolds number based on the chord length is …

The mechanisms of destabilisation of the flow through soft-walled channels/tubes are
qualitatively different from those in rigid-walled conduits. The stability depends on two …

Direct numerical simulations of turbulent flow in a channel with one rigid and one
viscoelastic wall are performed. An Eulerian–Eulerian model is adopted with a level-set …

Backward traveling waves over a wall of a fully developed turbulent channel are known to
reduce the drag coefficient, flow separation, and turbulence intensity. Based on previous …

Effective drag-reduction technology is important for enhancing navigation speed, extending
endurance, and enabling efficient energy usage of underwater vehicles. In this study, we …

In order to improve the endurance mileage and the sailing speed of micro underwater
vehicles, it is critical to reduce the drag of underwater devices. However, the existing …