Reynolds number

Rarity: Rare

A topic known well beyond its field, found in many languages.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

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Notion

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Science and technology

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What Wikipedia says

In fluid dynamics, the Reynolds number (Re) is a dimensionless quantity that helps predict fluid flow patterns in different situations by measuring the ratio between inertial and viscous forces.

Excerpt from the Wikipedia article “Reynolds number”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Teapeat, CC BY-SA 3.0, via Wikimedia Commons.