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How do Dyson air fans work, and why do they use a ring-shaped structure? How are they better than a normal air fan? - Quora
![Numerical investigation of geometric parameter effects on the aerodynamic performance of a Bladeless fan - ScienceDirect Numerical investigation of geometric parameter effects on the aerodynamic performance of a Bladeless fan - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S111001681500191X-gr3.jpg)
Numerical investigation of geometric parameter effects on the aerodynamic performance of a Bladeless fan - ScienceDirect
Dyson - In Dyson's patented Air Multiplier™ technology, the behaviour of the airflow is dictated by the orientation of the ramp. As the air exits the annular aperture, it is projected over
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