The swimming of aquatic animals and flying of insects and birds have fascinated physicists
and biologists for more than a century. In this regard, great efforts have been made to …

Micro aerial vehicles are making a large impact in applications such as search-and-rescue,
package delivery, and recreation. Unfortunately, these diminutive drones are currently …

Given a sequence of poses of a body we study the motion resulting when the body is
immersed in a (possibly) moving, incompressible medium. With the poses given, say, by an …

Numerical simulations of the auto-rotation of a model winged seed are presented. The
calculations are performed by solving simultaneously the Navier–Stokes equations for the …

Gravitational sedimentation and the collision of particles play key roles in various natural
and engineering processes. In practice, particles are often non-spherical in shape with non …

In this study the flow around a winged-seed in auto-rotation is characterized using direct
numerical simulations (DNS) at Reynolds number in the range 80–240, based on the …

The present study numerically investigated fluid-physical aspects of the autorotative flight of
real maple seeds. The flow field and the motion characteristics of the autorotating maple …

Using their light wing and through the use of a leading-edge vortex (LEV), autorotating
samaras can generate high lift while descending at extremely low speeds. But the flight …

The freely falling of solid bodies in viscous liquids is an interesting issue concerned with
many hydrodynamics and engineering problems. The eccentricity of the solid bodies may …

We provide a scaling law for the lift force of autorotating falling seeds at terminal velocity to
describe the relation among the lift force, seed geometry and terminal descending and …