The skin of fast-swimming sharks exhibits riblet structures aligned in the direction of flow that
are known to reduce skin friction drag in the turbulent-flow regime. Structures have been …

Nature has evolved objects with desired functionality using commonly found materials.
Nature capitalizes on hierarchical structures to achieve functionality. The understanding of …

We present an experimental study of a turbulent boundary layer (TBL) control on a flat plate
using plasma actuators. Three different configurations of the actuators produce spanwise …

Advancements in the fabrication of microfluidic and nanofluidic devices and the study of
liquids in confined geometries rely on understanding the boundary conditions for the flow of …

Attempts to measure the propulsive forces produced by swimming dolphins have been
limited. Previous uses of computational hydrodynamic models and gliding experiments have …

We perform numerical simulations of a turbulent channel flow over an hyper-elastic wall. In
the fluid region the flow is governed by the incompressible Navier–Stokes (NS) equations …

The inconsistency for the calculated high drag on an actively swimming dolphin and
underestimated muscle power available resulted in what has been termed Gray's paradox …

Both the academic society and the industry are hunting for new energy forms for the future.
However, the world should not forget the conventional technologies that contribute to the …

This review outlines the up‐to‐date research progress on controllable interfacial friction on
both solid/solid and solid/liquid surfaces. Environment‐sensitive materials at a frictional …

Friction drag is a nonnegligible matter when relative motion happens between solid and
liquid phase, which brings many inconveniences in ship navigation, fluid transportation …