Wind-dispersed plants have evolved ingenious ways to lift their seeds,. The common
dandelion uses a bundle of drag-enhancing bristles (the pappus) that helps to keep their …

In present times modern electronic devices often come across thermal difficulties as an
outcome of excessive heat production or reduction in surface area for heat exclusion. The …

Heat and mass transfer analysis of viscous liquid flow generated by rotation of disk has
generated prodigious interest due to promising utilizations in numerous processes such as …

The study and control of flow instabilities is a key problem in aerodynamics. Aircrafts are
designed not only to generate the lift force needed to balance their weight but, more …

Although the stability properties of the wake past impervious bluff bodies have been widely
examined in the literature, similar analyses regarding the flow around and through porous …

Understanding internal vortex breakdowns (VBs) and their trajectories in sealed cylinders
are important for the scientific and industrial applications with which they are linked …

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 …

Dandelion seeds can stably diffuse owing to the dominant drag rather than the lift-based
mechanism of the streamlined leaves of the plant, where this is known to favor their long …

Research on unstable airflow in nature has long been an important subject in work on
aerodynamics, and most principles of flight have been found in nature. The design of an …

Dandelion seeds possess a complex three-dimensional structure and a self-adapted flying
ability. To understand this fascinating flight mechanism, a three-dimensional umbrella …