Rayleigh number

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

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.

At a glance

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Notion

Domain

Science and technology

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What Wikipedia says

In fluid mechanics, the Rayleigh number (Ra, after Lord Rayleigh) for a fluid is a dimensionless number associated with buoyancy-driven flow, also known as free (or natural) convection.

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