Mention the word "turbulence" and you might conjure up images of bumpy flights, stormy weather, and choppy ocean or river currents. For many, turbulence is a fact of daily life, yet it is also one of the most poorly understood physical phenomena. In particular, the point at which a fluid's motion transitions from smooth and predictable flow (known as "laminar") to random and unpredictable (known as "turbulence")—the so-called laminar-turbulent transition—continues to puzzle scientists since Osborne Reynolds first experimentally studied it in pipes in 1883.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science https://ift.tt/zKOyhYc
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