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Froude number

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Also known as Froude number for mass transfer

dimensionless number defined as the ratio of the flow inertia to the external field

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Froude number
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In continuum mechanics, the Froude number (Fr, after William Froude, /ˈfruːd/) is a dimensionless number defined as the ratio of the flow inertia to the external force field (the latter in many applications simply due to gravity). The Froude number is based on the speed–length ratio which he defined as:

F r

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