Vortex flow: still from a simulation video showing how air from a sneeze can envelope a face shield. (Courtesy: Fujio Akagi/Isao Haraga/Shin-ichi Inage/Kozaburo Akiyoshi) Vortex rings created when a ...

Face shields were touted at the onset of the coronavirus pandemic as the 'friendlier' alternative to face masks. And while it is true wearing a face shield may ensure your smile isn't obscured, this ...

Helicopter safety researchers are to undertake formal analysis of the hazardous vortex ring phenomenon and the effectiveness of an alternative recovery and escape technique. The vortex ring state is ...

Previously too complex to tackle, computer simulations can now show how elliptical vortex rings form, say scientists. Understanding how smoke rings form and dissipate could lead to technology allowing ...