A groundwater flow model is in fact a numerical construction that tries to represent the groundwater flow regime of a certain place with the relevant physical process conceptualized as boundary conditions. So we as humans, capable of developing machine learning algorithms and smartphones, tend to think that building and running a groundwater model is a natural process that will require us to follow certain steps and it would be completed in a certain time. 

Our first tutorial of voronoi mesh groundwater modeling with Tupac Cloud. The study case deals with the river - aquifer interaction with wells and general head boundaries. The model has confined and convertible layer and two stress periods (steady and transient). The model is run on the platform with a view of the Modflow simulation report. Water budgets and heads are analyzed on different tables, plots and maps.

Over the last decade Model Muse has been on the most complete and open source pre and post processing tools for groundwater modeling with Modflow. Latest developements on Model Muse are related to the implementation of new tools in MODFLOW 6, but there are also enhacements related to previous MODFLOW versions, PHAST and Sutra. The most relevant changes on this version are:

Setting up information for several stress periods on normal GUIs tools can be an exhausting since it implies opening/formatting/filling/closing many charts manually. This task becomes more complicated if the model needs to be updated every given time. We wanted to develop a case where a steady state model can be updated to a transient model from data of a spreadsheet file.

This tutorial cover the implementation of a transient model of a river/well/aquifer interaction where the number of stress periods, the length of stress periods, time steps, multiplier, steady/transient mode, pumping rate, river stage and output mode are updated from a excel (.xlsx) file. The tutorial is divided into 3 steps where each part shows sequential parts of this model transformation.