The image above represents seepage velocity. Two essential parameters are needed to calculate seepage velocity: the rate of unit discharge (q) and the net sectional area of voids (Av).
The formula for calculating seepage velocity:
vs = q / Av
Where:
vs = Seepage Velocity
q = Rate of Unit Discharge
Av = Net Sectional Area of Voids
Let’s solve an example;
Find the seepage velocity when the rate of unit discharge is 10, and the net sectional area of voids is 8.
This implies that;
q = Rate of Unit Discharge = 10
Av = Net Sectional Area of Voids = 8
That is, vs = q / Av
vs = 10 / 8
vs = 1.25
Therefore, the seepage velocity is 1.25.
Calculating for Rate of Unit Discharge when the Seepage Velocity and the Net Sectional Area of Voids are Given
q = vs x Av
Where;
q = Rate of Unit Discharge
vs = Seepage Velocity
Av = Net Sectional Area of Voids
Let’s solve an example;
Find the rate of unit discharge when the seepage velocity is 10, and the net sectional area of voids is 4.
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This implies that;
vs = Seepage Velocity = 10
Av = Net Sectional Area of Voids = 4
q = vs x Av
So, q = 10 x 4
q = 40
Therefore, the rate of unit discharge is 40.
Read more:Â How to Calculate and Solve for Permeability | Hydrology II
Calculate the net sectional area of voids when the seepage velocity and the rate of unit discharge are given
Av = q / vs
Where;
Av = Net Sectional Area of Voids
vs = Seepage Velocity
q = Rate of Unit Discharge
Let’s solve an example;
Find the net sectional area of voids when the seepage velocity is 4, and the rate of unit discharge is 60.
This implies that;
vs = Seepage Velocity = 4
q = Rate of Unit Discharge = 60
Av = q / vs
Then, Av = 60 / 4
Av = 15
Therefore, the net sectional area of voids is 15.
How to Calculate Seepage Velocity in Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the seepage velocity.
To get the answer and workings of the seepage velocity, use the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Agricultural under Engineering.
Now, Click on Hydrology II under Agricultural
Now, Click on Seepage Velocity under Hydrology II
The screenshot below displays the page or activity to enter your values to get the answer for the seepage velocity according to the respective parameters, which are the Rate of unit discharge (q) and Net Sectional Area of Voids (Av).
Now, enter the values appropriately and accordingly for the parameters as required by the Rate of unit discharge (q) is 10 and Net Sectional Area of Voids (Av) is 8.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the seepage velocity and presents the formula, workings and steps too.
