When people are thinking of the future of space travel, an idea that floats around is a spaceship with a giant solar sail pushed along by a massive laser. Inspired by the concept but lacking a giant ...

There was once a saying from the renowned American physicist Richard Feynman about turbulence. He said that it remains to be the most important "unsolved" problem in classical physics. The challenge ...

A vortex tube splits a stream of air into hot and cold! This is how it works and why it doesn't violate the second law of thermodynamics.

The Ranque-Hilsch vortex tube is an innovative device that utilises compressed gas to separate energy streams into distinct hot and cold outputs. Its operation is based on complex internal flow ...

Vortex tubes are a key ingredient of turbulence, which is widely studied in classical physics. The motion of vortex tubes is relevant in a wide range of scenarios, such as the formation of hurricanes, ...

High-temperature vortex tubes convert compressed air into two streams: one hot, one cold. The tubes cool applications up to 392°F (200°C). The devices produce cold air down to –50°F (–46°C) and have a ...

Vortex tubes provide a low-cost, maintenance-free solution to industrial spot-cooling problems Vortex tubes provide a low-cost, maintenance-free solution to industrial spot-cooling problems. Using the ...

Conceptual diagram of the influence of horizontal vortex tubes on tornado genesis and development during the intensification stage: (a) the effect of horizontal vortex tubes on tornado rotation; (b) ...