Wingtip slots, where the outer primary feathers of birds split and spread vertically, are
regarded as an evolved favorable feature that could effectively improve their aerodynamic …

Bird-like flapping-wing aerial vehicles (BFAVs) have attracted significant attention due to
their advantages in endurance, range, and load capacity. For a long time, biologists have …

Light pollution causes attraction and/or disorientation of seabirds, leading to mortality events
due to multiple threats. This is a poorly understood phenomenon, largely because of the …

V-Formation and echelon formation flights can be seen used by migratory birds throughout
the year and have left many scientists wondering why they choose very specific formations …

In this study, the aerodynamic performance of bionic airfoil was numerically studied by CFD
method. The bionic airfoil was represented by the combination of airfoil and a small trailing …

Self-activated feathers are used by many birds to adapt their wing characteristics to the
sudden change of flight incidence angle. In particular, dorsal feathers are believed to pop-up …

Bird wings have split primary feathers that extend out from the wing surface. This structure is
called the wingtip slot, which is recognized as a product of bird evolution to improve flight …

Simple Summary All large birds have devised ways to save on the costly energy demands of
flight. Geese, which form into a precise V formation, are a familiar example. Current …

The current study numerically investigated the accuracy of turbulent models in predicting the
aerodynamic performance of man-made, bird-like high-lift low Reynolds number airfoils …

In this work, the aerodynamic performance of four types of bird's airfoils (eagle, stork, hawk,
and albatross) at low Reynolds number and a range of angles of attack during fixed …