Ursell number
id:
ursell-number-302-8369956
title:
Ursell number
text:
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. The Ursell number is derived from the Stokes wave expansion, a perturbation series for nonlinear periodic waves, in the long-wave limit of shallow water – when the wavelength is much larger than the water depth. Then the Ursell number U is defined as: which is, apart from a constant 3 /, t
brand slug:
wiki
category slug:
encyclopedia
description:
Dimensionless number indicating the nonlinearity of long surface gravity waves on a fluid layer.
original url:
https://en.wikipedia.org/wiki/Ursell_number
date created:
date modified:
2024-03-18T16:16:14Z
main entity:
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image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/8/84/Sine_wave_amplitude.svg","width":679,"height":294}
fields total:
13
integrity:
15