Previous studies have implied that the AR (aspect ratio) of the transverse groove
significantly affects the stability of the boundary vortex within the groove and thus drives the …

Despite many advances in numerical simulation of stable boundary layers (SBL), most of the
models developed are complex and computationally expensive. A computational fluid …

The interaction of a National Advisory Committee for Aeronautics 0012 wing-tip vortex with a
grid-generated turbulent flow was experimentally investigated. The experiments were …

The optimization of the airfoil has a significant impact on the reduction of energy
consumption for a rotary machine. In this paper, ANSYS Fluent is used to study the influence …

The interaction of a wing-tip vortex of a rectangular, square-tipped wing having a NACA
0012 airfoil section with a grid-generated turbulent flow was investigated in this paper. The …

Reducing the skin-friction drag of a vehicle is an important way to reduce carbon emissions.
Previous studies have investigated the drag reduction mechanisms of transverse grooves …

The effect of external free-stream turbulence was investigated experimentally in the near-
field of a wing-tip vortex. A free-stream turbulent flow with 4.6% turbulence intensity was …

Research on turbulent drag reduction has been limited owing to the limitations of existing
parameters used for the identification of vortex structures. As a new and more suitable vortex …

Inspired by pigeon feathers, the drag-reducing contribution of spanwise grooves was
studied. Surface topography of the wing feather was scanned by an instrument of white light …

This study investigates the drag reduction effect and mechanism of modified transverse
grooves by employing “Constant Width” and “Constant Height” filleting methods on the top …