Online Froude Number Calculation
https://www.meracalculator.com/physics/fluid-mechanics/froude-number.php
Froude number (Fr), in hydrology and liquid mechanics, dimensionless amount used to show the impact of gravity on smooth movement. It is commonly communicated as Fr = v/(gd)1/2, in which d is profundity of stream, g is the gravitational quickening (equivalent to the particular load of the water isolated by its thickness, in liquid mechanics), v is the celerity of a little surface (or gravity) wave, and Fr is the Froude number. At the point when Fr is under 1, little surface waves can move upstream; when Fr is more noteworthy than 1, they will be conveyed downstream; and when Fr = 1 (said to be the basic Froude number), the speed of stream is simply equivalent to the speed of surface waves. The Froude number goes into definitions of the pressure driven bounce (ascend in water surface rise) that happens under specific conditions, and, along with the Reynolds number, it serves to outline the limit among laminar and violent stream conditions in open channels.
In open channel power through pressure, the Froude number is a significant non-dimensional boundary. The Froude Number is a dimensionless boundary estimating the proportion of "the inactivity power on a component of liquid to the heaviness of the liquid component" - the inertial power partitioned by gravitational power.
Formula:
The Froude Number can be expressed as
Fr = v / (g hm)1/2
where
Fr = Froude number
v = velocity (m/s)
g = acceleration of gravity (9.81 m/s2)
hm = hydraulic mean depth or characteristic length (m)
The Froude Number is pertinent in liquid unique issues where the weight (gravitational power) of the liquid is a significant power.
When all is said in done this is the circumstance with the expectation of complimentary surfaces like cold windows and hot radiators - or stream in open courses like water channels, sewer pipes . It is utilized while figuring energy move all in all and open channel stream and wave and surface conduct specifically. The Froude Number is significant when examining stream in spillways, weirs, channel streams, waterways and in transport plan. Water estimation in open channel stream by and large requires the Froude number to be under 0.5 to forestall waves upsetting precise head readings.
At the point when the Froude number is 1 the speed is equivalent to the speed of wave spread and downstream waves or weight aggravations can't travel upstream. A Froude number of 1 characterizes critical mean depth vs. critical velocity.
