Car sound out anyone??

you know when your driving in the coup¨¦ with the window open and you hear close to a helicoptor noise...whats that from??


Answers:    fast pressure raises and decrease


the air get jammed in the rear until it breaks past the incoming pressure and releases.. which creates a small complicated nouns.. where the incoming nouns helps force it out until its perched.
This noise is created by the unfurl windows disrupting the airstream flowing around your saloon.
its a vacuum effect,the air inside is trying to win out the way its comming within but the amount of air inside cant escape through the backside vents high-speed enough cause an ear aching chopper uproar
Possibly the seat belt sometimes they progress crazy from the wind. customarily only at superior speeds tho.
Could be disrupted air flow, most predictable. But it could also be you seat belt straps flapping within the wind.
drag! (airflow flow template change)
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