31 Jul '16, 4pm

#TechNews #Thermal Keep cool with DIY bladeless #fan made with a water jug and vase

#TechNews #Thermal Keep cool with DIY bladeless #fan made with a water jug and vase

The bladeless design creates a Venturi effect , which is when a fluid that flows through a pipe is forced through a narrow section, leading to a pressure decrease and velocity increase. Similar to a jet effect, a real life example is seen with the feeling experienced when a thumb is placed at the end of a hose with the water running. The water’s velocity increases when a finger covers the water, while the pressure in the smaller hose area creates a vacuum in the water. A paper explaining the technology behind Dyson’s bladeless fan clarifies that air leaves the fan at a higher velocity than the air behind the fan, leading to an area of low pressure. This difference in pressure between high velocity air and still air draws in induced air.

Full article: http://www.electronicproducts.com/Thermal_Management/Fans...

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