Hydrogeology 101: Steady state in pumping wells

This video is about pumping wells and what it means to reach steady state. There can be no steady state without a balance between groundwater abstraction and groundwater recharge. We will look at this concept using a steady state unconfined groundwater flow model in Excel.
This is an educational video & part of the Hydrogeology 101 course.
You are welcome to download a copy of the model via Google Drive: bit.ly/2IS6Wzn
However, you are fully responsible for whatever you decide to do with it - it is an educational spreadsheet only. Please use professional modelling software if you want to design a wellfield, artificial recharge scheme etc...

[@henro140995]

Amazing! I had only seen this level of visualization in programming softwares like MATLAB python etc., great to know the magic we can do on excel :) thank you

[@GeosearchInternational]

You are welcome Henrique! All the best, Andreas

[@fuzelakhter7593]

Really, I have been such kind of video lecture in life. I will give you 10 out of 10. Amazing! 😍😍

[@GeosearchInternational]

Thank you so much 😀 Fuzel, All the best, Andreas

[@samirdehpoor3533]

Very useful topic, well done Sir

[@GeosearchInternational]

Glad you liked it!
All the best, Andreas

[@yajunli5147]

Hi Andreas，THANK YOU VERY MUCH FOR SHARING the videos and the spreadsheets！Very valuable material for learning！Please could you share the other associated spreadsheets too？It’s always better by hands on！THANK YOU. Best wishes，Yajun

[@GeosearchInternational]

You are welcome Yajun!
I have uploaded the steady state, unconfined model. Here is the link: bit.ly/2IS6Wzn
All the best, Andreas

[@amitkhandelwal7328]

What's the method of selecting values of constant head?

[@GeosearchInternational]

Dear Amit, thanks for your question. In the video it was just an arbitrary number as we wanted to see what the cone of depression looks like. In a real model, the constant head values should reflect the elevation of the water surface (ie head) which is interacting with the aquifer. For example, the elevation above datum of water levels in a lake or in a river which is hydraulically connected to the aquifer. Remember that the constant head boundary just means that the heads there are fixed, and groundwater can flow from the boundary into the aquifer and also from the aquifer to the boundary. All the best, Andreas