Ursell number

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Science and technology

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What Wikipedia says

In fluid dynamics, the Ursell number indicates the nonlinearity of long surface gravity waves on a fluid layer. This dimensionless parameter is named after Fritz Ursell, who discussed its significance in 1953.

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

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