Why is wind so loud?
In: Physics
When a fluid (air is technically a fluid) moves at a slow speed, the molecules generally move parallel to each other. This is known as laminar flow, and results in a steady, soft sound as it blows by one’s ear.
However, at higher speeds, the molecules interact in different manners and turbulent flow is created, where the molecules start moving in more unpredictable patterns. In turbulent flow, the speed of the fluid at a point is continuously undergoing changes in both speed and direction. The irregularities in air manifest as the buffeting, irregular noise one interprets as wind.
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