Tornado effect
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The facility uses an exhaust fan to draw hot air out of the workshop; the wind speed at the exhaust opening is high, but there is no suction 30 centimeters away from the seal. What device can be added to an exhaust vent to create an effect similar to that of a tornado?
Either place the fan on the top of the factory building, or on either side at the bottom – with air entering from one side and exiting from the other – and the results will definitely be excellent:lol