


Confined Heterogeneous Aquifer
Calculate the groundwater flow per unit width of a confined aquifer which can be divided into three homogeneous areas with different hydraulic conductivities. Also determine the position of the piezometric surface on the crosssection and the "equivalent hydraulic conductivity". Solve the following problem analytically and using MAGNET and compare the results.
(Analytical Flow Modeling  Steady 12)




Confined Aquifer Steady State Flow With Recharge
Consider the head distribution along the length of an confined aquifer that is adjacent to two constant head boundaries and receiving constant recharge to the top of the aquifer. Develop a MAGNET model to reproduce the above analytical solution.
(Analytical Flow Modeling  Steady 12)




Irrigation Drainage System
(Intermediate  Analytical and numerical subproblems.) The irrigation system for the Spartan valley is to control the water table at a minimum of 3.5 ft below the ground surface. This is done to prevent flooding in agricultural fields which can damage or completely destroy crops. The proposed solution is to create a system of 6ft. deep parallel ditches that `remove' groundwater through surface seepage, such that the water table does not rise to a depth less than the minimum allowable depth (see below).
(Analytical Flow Modeling  Steady 12)




Unconfined Aquifer  Steady State Flow With Recharge
Consider the head distribution along the length of an unconfined aquifer that is adjacent to two constant head boundaries and receiving constant recharge to the top of the aquifer. Develop a MAGNET model to reproduce the above analytical solution. Further develop the model to simulate vertical flow that is important in the area near the groundwater divide.
(Analytical Flow Modeling  Steady 12)




Unconfined Aquifer with Infiltration, calibration
A water supply well at a paper factory is tapping an unconfined aquifer which is exposed to significant infiltration from precipitation. An incomplete record shows a fairly constant drawdown in the well and the two nearby abandoned wells. From the available data find the average pumping rate of the well and the average annual infiltration rate. Solve the following problem analytically and using MAGNET and compare the results.
(Analytical Flow Modeling  Steady 12)




Aquifer Flushing/Cleanup using a Drainage Gallery and Infiltration Channel
There was an incident with a cargo train that resulted in a major accidental spill of harmful chemicals. The contaminated groundwater is migrating toward a river used for drinking water supply for a large population center. Construction of a drainage gallery and an infiltration channel for aquifer flushing is proposed for the cleanup of the contaminant plume. Develop a MAGNET model of the groundwater inflow into the drainage gallery for the given parameters/conditions. Also solve the problem analytically and compare the results.
(Analytical Flow Modeling  Steady 12)




Leaky Aquifer to a Lake
Intermediate  Analytical approach (numerical subproblem under development). Background: One of the primary delivery mechanisms of chemicals into lakes is the discharge of groundwater through lakebed sediments. The transfer of chemicals and nutrients such nitrogen and phosphorus, carbon, etc. affects the biological processes in the lake and helps to control the biochemical characteristics of the lakes and codependent ecosystems (including those downstream of the lake).
(Analytical Flow Modeling  Steady 12)




Canyon Seepage
Beginner to Intermediate  Analytical and numerical components. Background: A sandstone aquifer connects a reservoir with a river in a canyon as shown below. Impermeable shale lies above and below the aquifer, and along the river and reservoir where the aquifer is not connected. A portion of the aquifer near the river is unconfined.
(Analytical Flow Modeling  Steady 12)




Alluvial Fan
Alluvial fans are fanshaped deposits of watertransported material (alluvium) that typically form at the base of topographic features where there is a marked break in slope. Develop the solution for the water table elevation h(r), verify your analytical solution with MAGNET using a set of assumed typical parameters.
(Analytical Flow Modeling  Steady 12)




Artificial Recharge
Artificial Storage and Recovery (ASR) facilities inject treated wastewater or surface water into an aquifer. Some ASR facilities inject groundwater from a different aquifer. Watch the related videos, answer short questins, and reproduce the animations/models using MAGNET
(Analytical Flow Modeling  Steady 12)




Seawater intrusion (salt water intrusion)
Seawater intrusion in coastal aquifers is a widespread and serious problem in many parts of the world. Groundwater degradation due to seawater intrusion is often accentuated in small island aquifers due to overpumping or limited replenishing amounts of precipitation. Solve an example problem analytically and numerically using MAGNET.
(Analytical Flow Modeling  Steady 12)



