• Describe the steady-state flow to wells in confined and unconfined aquifers

  • Explain the correspondence between linear and radial coordinates
  • Derive the flow equations for steady flow to wells
  • Build simple aquifer models
  • Apply the flow equations to estimate aquifer parameters
  • Design wells for steady water supply

  • Describe the unsteady flow to wells in confined, semi-confined and unconfined aquifers

  • Explain what well functions are

  • Use graphical methods to calculate transmissivity

  • Compare the (transient) flow behavior in (semi)confined and unconfined aquifers

  • Explain slug tests

  • Contrast slug tests and well tests

  • Choose the appropriate analysis to calculate aquifer properties from slug tests

  • Model aquifers and wells

  • Apply analytical methods to steady state flows

  • Use finite difference methods to model aquifers and wells

  • Use computer models to automate calculations

  • Relate mathematical models to numerical models such as MODFLOW

  • Explain how well fields work

  • Apply flow equations for multiple wells

  • Explain how boundaries can be modeled with multiple (imaginary) wells

  • Plan dewatering systems

  • Interpret pump and treat systems from a hydraulics perspective

Week 1: Steady Flow to well

We start with the description of radial coordinates and steady flow to wellsin confined and unconfined aquifers. We also introduce finite difference methods.

• Steady Flow to Well
• Radial Coordinates
• Steady Flow to Confined Well
• Finite Difference

Week 2: Transient Confined and Semi-Confined Flows

We describe transient flows in confined and semiconfined aquifers. We use graphic methods and semi-automated methods to calculate aquifer properties from well tests.

• Transient Confined Flow
• Transient Confined
• Transient Confined: Graphic Method
• Transient Confined: Straight Line
• Transient Leaky Confined

Week 3: Transient Unconfined Flows

We continue to describe well tests in unconfined aquifers to calculate unconfined aquifer properties. We also introduce slug tests and their analysis.

• Transient Unconfined
• Slug Tests:
  • Cooper Method
  • Hvorslev Method
  • Bouwer and Rice

Week 4: Well Fields and Dewatering

We start by reviewing the superposition principle and review the problem of domain boundaries. We then focus on dewatering examples.

• Wells Fields
• Superposition Principle
• Boundaries
• Dewatering

Week 5: Pump and treat / Capture Zones and MODFLOW models

We continue to explore the topic of well fields in the context of extraction and injection wells. We show an example of pump and treat design and an in-situ remediation design. We also show an example of a well model in MODFLOW.

• Pump and Treat/ Capture Zones
• MODFLOW