Light-driven dandelion-inspired microfliers
Y Chen, C Valenzuela, X Zhang, X Yang… - Nature …, 2023 - nature.com
In nature, many plants have evolved diverse flight mechanisms to disperse seeds by wind
and propagate their genetic information. Inspired by the flight mechanism of the dandelion …
and propagate their genetic information. Inspired by the flight mechanism of the dandelion …
Development and evolution of the Asteraceae capitulum
Asteraceae represent one of the largest and most diverse families of plants. The
evolutionary success of this family has largely been contributed to their unique …
evolutionary success of this family has largely been contributed to their unique …
Study of flow through and around a pair of porous cylinders covering steady and unsteady regimes
The present article focuses on the incompressible flow around two identical porous cylinders
for a side-by-side configuration in a closed channel. The formation of various flow patterns …
for a side-by-side configuration in a closed channel. The formation of various flow patterns …
The pappus angle as a key factor in the entire separation of a vortex ring from a dandelion seed's pappus
FS Qiu, HY Qian, YM Du, CJ Li - Physics of Fluids, 2022 - pubs.aip.org
A separated vortex ring is the main aerodynamic feature of the dandelion seed which
enables its flight. However, recent research on simply modeled dandelion seeds with a …
enables its flight. However, recent research on simply modeled dandelion seeds with a …
Transport across thin membranes: Effective solute flux jump
A model to describe the transport across membranes of chemical species dissolved in an
incompressible flow is developed via homogenization. The asymptotic matching between …
incompressible flow is developed via homogenization. The asymptotic matching between …
Instability and trajectories of buoyancy-driven annular disks: A numerical study
We investigate the stability of the steady vertical path and the emerging trajectories of a
buoyancy-driven annular disk as the diameter of its central hole is varied. The steady and …
buoyancy-driven annular disk as the diameter of its central hole is varied. The steady and …
Transition to turbulence in the wake of dandelion-like spoke disk
Y Dong, Y Ni, K Hu, T Zhang, Z Zhang, Y Wang - Physics of Fluids, 2023 - pubs.aip.org
In order to solve the inevitable instability problem of dandelion-like unpowered aircraft,
transient simulations are carried out for the transition to turbulence of the wake from stable to …
transient simulations are carried out for the transition to turbulence of the wake from stable to …
On the attitude stability of flying dandelion seeds
Dandelion seeds possess a complex three-dimensional structure and a self-adapted flying
ability. To understand this fascinating flight mechanism, a three-dimensional umbrella …
ability. To understand this fascinating flight mechanism, a three-dimensional umbrella …
Homogenization-based design of microstructured membranes: Wake flows past permeable shells
A formal framework to characterize and control/optimize the flow past permeable
membranes by means of a homogenization approach is proposed and applied to the wake …
membranes by means of a homogenization approach is proposed and applied to the wake …
Permeability sets the linear path instability of buoyancy-driven disks
The prediction of trajectories of buoyancy-driven objects immersed in a viscous fluid is a key
problem in fluid dynamics. Simple-shaped objects, such as disks, present a great variety of …
problem in fluid dynamics. Simple-shaped objects, such as disks, present a great variety of …