Dyson Ltd.

Requirement

One of the major challenges with the Dyson Air Multiplier™ bladeless fan was the problem of air intake. The motor had to suck in more than 20 litres of air per second to generate a powerful enough jet.

CN Solution

Using FANPAL™ and AxCent®, it was spotted that the acoustic performance of the blade was closely linked to blade shape. CN software was used to optimize flow conditions with blades unevenly spaced and blade angles developed to minimize end losses.

Benefit

Simulating air flow using AxCent without the need for a physical prototype is of huge commercial advantage to Dyson. Being able to visualize flow throughout the impeller helped Dyson to gain an intuitive understanding of the design, leading to rapid improvements.