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In continuum mechanics, the Froude number (Fr, after William Froude, / ˈ f r uː d / [1]) 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 represents the ratio of inertial to gravitational acceleration, indicating that a rigid inverted pendulum would escape its circular trajectory at a Froude number or dimensionless speed greater than one.
The Froude number is defined as a dimensionless number that is proportional to the square root of the ratio of inertial forces to the weight of fluid. It is crucial in model studies of open channel flows and hydraulic structures to ensure similarity between the model and the prototype.
25 lis 2010 · Froude number is a dimensionless parameter measuring the ratio of inertia force to gravitational force of a fluid element. It is used in open channel hydraulics, wave and surface behavior, and ship design. Learn how to calculate it and see examples and related topics.
The Froude Number is a dimensionless ratio that expresses the relation of the inertia force to the gravitation force in free-level fluid flow in open canals. It also determines the character of the flow, with subcritical flow when Fr 1, critical flow when Fr = 1, and supercritical or accelerated flow when Fr > 1.
Froude number (Fr), in hydrology and fluid mechanics, dimensionless quantity used to indicate the influence of gravity on fluid motion. It is generally expressed as Fr = v /( gd ) 1 / 2 , in which d is depth of flow, g is the gravitational acceleration (equal to the specific weight of the water divided by its density , in fluid mechanics), v is ...
1 sty 2014 · The Froude number, an important parameter for the study of liquids moving in a free surface (e.g., surface wave motion), is defined as F r = v 2 / gL or F r = ρv 2 L 2 /ρgL 3. Because ρL 3 = m (mass), one can also have F r = ρv 2 L 2 / mg.
