How to Calculate and Solve for Steady Flow in a unconfined aquifer | Flow lines
Last Updated on April 7, 2024
The image above represents steady flow in an unconfined aquifer. To calculate an unconfined aquifer, four essential parameters are needed and these parameters are Hydraulic Conductivity (K), Head at the Origin (h1), Head at L (h2) and Flow Length (L).
The formula for calculating steady flow in an unconfined aquifer:
qt = K(h1² – h2² / 2L)
Where:
qt = Steady Flow in an Unconfined Aquifer
K = Hydraulic Conductivity
h1 = Head at the Origin
h2 = Head at L
L = Flow Length
Let’s solve an example;
Find the steady flow in an unconfined aquifer where the hydraulic conductivity is 14, the head at the origin is 8, head at L is 3 and the flow length is 5.
This implies that;
K = Hydraulic Conductivity = 14
h1 = Head at the Origin = 8
h2 = Head at L = 3
L = Flow Length = 5
qt = K(h1² – h2² / 2L)
So, qt = 14(8² – 3² / 2(5))
qt = 14(64 – 9 / 10)
qt = 14(55 / 10)
Then, qt = 14(5.5)
qt = 77
Therefore, the steady flow in an unconfined aquifer is 77.
Read more: How to Calculate and Solve for Steady Flow in a Confined Aquifer | Flow Lines
How to Calculate Steady Flow in a unconfined aquifer Using Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the steady flow in an unconfined aquifer.
To get the answer and workings of the steady flow in an unconfined aquifer using 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 Geology under Add-on.
Now, Click on Flow Lines under Geology
Now, Click on Steady Flow in an Unconfined Aquifer under Flow Lines
The screenshot below displays the page or activity to enter your values, to get the answer for the steady flow in an unconfined aquifer according to the respective parameters which are the Hydraulic Conductivity (K), Head at the Origin (h1), Head at L (h2) and Flow Length (L).
Now, enter the values appropriately and accordingly for the parameters as required by the Hydraulic Conductivity (K) is 14, Head at the Origin (h1) is 8, Head at L (h2) is 3 and Flow Length (L) is 5.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the steady flow in an unconfined aquifer and presents the formula, workings and steps too.
