Eötvös number
Eötvös number
Eötvös number
In fluid dynamics the Eötvös number (Eo) is a dimensionless number named after Hungarian physicist Loránd Eötvös (1848–1919).[SUP][1][/SUP][SUP][2][/SUP] It is also known in a slightly different form as the Bond number (Bo),[SUP][2][/SUP][SUP][3][/SUP][SUP][4][/SUP] named after the English physicist Wilfrid Noel Bond (1897–1937).[SUP][3][/SUP][SUP][5][/SUP] The term Eötvös number is more frequently used in Europe, while Bond number is commonly used in other parts of the world.[SUP][citation needed][/SUP]Together with Morton number it can be used to characterize the shape of bubbles or drops moving in a surrounding fluid. Eötvös number may be regarded as proportional to buoyancy force divided by surface tension force.
[*=left]Eo is the Eötvös number
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[*=left]g: gravitational acceleration, (SI units : m/s[SUP]2[/SUP])
[*=left]L: characteristic length, (SI units : m)
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http://en.wikipedia.org/wiki/Eötvös_number
http://en.wikipedia.org/wiki/Eötvös_number