That is the square root of “g” times the cubed value of the critical depth. In the past we’ve defined the various stages of critical flow by the Froude number (F r). When the actual depth is less than critical depth it is classified as supercritical.

3. Top ... OUTPUT (critical depth): Depth y c: 0 . Thank you for running onlinechannel_07. When the depth of flow exceeds the critical depth the flow is considered subcritical, when the depth of flow is less than the critical depth the flow is considered supercritical. A convenient method of determining what type of flow exists in a channel is to use the froude number?. The Froude Number and Critical, Subcritical and Supercritical Flow. F r < 1, flow is sub-critical; F r = 1, flow is critical; F r > 1, flow is super-critical; We've also stated before that the Froude number should generally not exceed 0.5, as above this number standing surface waves are prone to form. Critical flow is the transition or control flow that possesses the minimum possible energy for that flowrate. Thank you for running onlinechannel_05. The Froude number is a dimensionless number comparing inertial and gravitational forces.

Velocity V c: 0 . Please call again.

Please call again. In general, supercritical flow is characterized by high liquid velocity and shallow flow, while subcritical flow is characterized by low liquid velocity and relatively deep flow. A note, the critical depth or the unit discharge is only dependent upon the critical depth in this particular case. Any particular example of open channel flow will be critical, subcritical, or supercritical flow. Also, the critical flow & critical velocity occur at the critical depth. This implies that if you can force critical flow, you can compute the unit discharge, “Q”. Oscillating Hydraulic Jump – Froude Number (6-20) Oscillating jump forms when an oscillating jet enter into super critical state and there the number of particles starts oscillating in clockwise or either anticlockwise direction, forming slighter tides or waves to the top surface. Froude number F: OUTPUT: Critical depth y c: Critical velocity v c: Your request was processed at 05:17:58 pm on June 15th, 2020 [ 200615 17:17:58 ]. Critical flow has a Froude number equal to one. Froude number F c: 0 Your request was processed at 08:18:52 am on June 15th, 2020 [ 200615 08:18:52 ].

Here we can calculate for Froude Number, Flow Velocity, Acceleration of Gravity, Mean Depth. times the critical velocity, we have the unit discharge. (critical depth): Units selected: Gravitational acceleration g: Flow area A c: 0 Wetted perimeter P c : 0 .

Supercritical flow has a Froude number greater than one.