The Froude Number is important when analyzing flow in spillways, weirs, channel flows, rivers and in ship design. Water measurement in open channel flow generally requires the Froude number to be less than 0.5 to prevent waves disturbing accurate head readings.

Which of these depths is exhibited by the flow is determined by the slope and roughness of the channel. The Froude number characterizes whether flow is critical, supercritical or subcritical, and is defined by Equation \[\begin{equation} Fr=\frac{V}{\sqrt{gD}} \tag{5.1} \end{equation}\] The Froude number characterizes flow as:

3 天之前 · Table 2 Calculation of Froude Number and Hydraulic Jump at Channel 1 = 6 cm and Channel 2 = 12 cm Table 3 only h as 4 experimental sections in channel 2, starting from Section 2 to

The Froude number, Fr, is a dimensionless value that describes different flow regimes of open channel flow. The Froude number is a ratio of inertial and gravitational forces. · Gravity (numerator) - moves water downhill · Inertia (denominator) - reflects its willingness to do so. Where: V = Water velocity

2025年2月1日 · Table 2 is the result of Froude number, flow type, and hydraulic jump type at channel opening 1 of 6 cm (a1 = 6 cm) a nd channel opening 2 of 12 cm (a1 = 12 cm). The results of

b = width of the rectangular channel, ft. The Froude Number as Related to Critical Flow. The Froude Number is a dimensionless parameter used in connection with open channel flow. For flow in a rectangular channel, the Froude Number is defined as: Fr = V**/(gy)1/2**, where the variables in the definition are as defined in the previous section ...

The Froude Number for flow in an open channel is defined as: Fr = V2/gy, where V, y, and g are the average velocity, depth of flow, and acceleration due to gravity respectively.

2016年1月11日 · Froude number, abbreviated as Fr, a dimensionless number, is the ratio of inertial force to gravitational forces acting on a fluid flow. It is used for wave and surface behavior for mixed natural and forced convection.

this paper shows that one form of a roughness Froude number has a strong relation to the transition between nappe and skimming flow regimes of stepped chutes, while another combines the dimensionless flow friction factor and the relative submergence of roughness elements.

Open channel flow must have a free surface. Normally free water surface is subjected to atmospheric pressure, which remains relatively constant throughout the entire length of the channel. The pressure distribution in any section is directly proportional to the depth measured from the free water surface.