Tutorials

The following tutorials demonstrate basic FloPy features and usage with MODFLOW 2005, MODFLOW 6, and related programs.

FloPy

• Formatting ASCII output arrays
  • Configuring numeric arrays written by FloPy
• Exporting to netCDF and shapefile
  • Basic netCDF export capabilities
  • Export an array to netCDF or shapefile
  • Export a package to netCDF
  • Export an entire model to netCDF
  • Export model outputs to netCDF
• Exporting to VTK
  • Using the .export() method
  • Using the Vtk class
• External file handling
  • Using external_path
  • Fixed format
  • Free and binary format
  • The .how attribute

MODFLOW 6

• MODFLOW 6: Accessing Simulation Settings, Models, and Packages
  • Create Simple Demonstration Model
  • Accessing Simulation-Level Settings
  • Accessing Models and Packages
• MODFLOW 6: Observation packages
  • Introduction to Observations
  • Observation Example 1
  • Observation Example 2
• MODFLOW 6: Time Series Packages
  • Introduction to Time Series
  • Time Series Example 1
  • Time Series Example 2
• MODFLOW 6: Time Array Series Packages
  • Introduction to Time Array Series
  • Time Array Series Example 1
  • Time Array Series Example 2
• MODFLOW 6: Working with MODFLOW Scalar Data
  • Introduction to MODFLOW Scalar Data
  • Adding MODFLOW Single Integer and String Values
  • Setting MODFLOW Boolean Flags
  • Retrieving MODFLOW Scalar Data
• MODFLOW 6: Working with MODFLOW List Data.
  • Introduction to MODFLOW List Data
  • Adding MODFLOW Package Data, Connection Data, and Option Lists
  • Adding Stress Period List Data
  • Retrieving MODFLOW Package Data, Connection Data, and Option Lists
  • Retrieving MODFLOW Stress Period List Data
• MODFLOW 6: Working with MODFLOW Grid Array Data
  • Introduction to MODFLOW Array Data
  • Adding MODFLOW Grid Array Data
  • Adding MODFLOW Stress Period Array Data
  • Retrieving Grid Array Data
  • Retrieving MODFLOW Stress Period Array Data
• MODFLOW 6: External Files, Binary Data, and Performance Optimization
  • Introduction to Data Storage Options
  • Setting up a Data Storage Information Dictionary
  • Optimizing FloPy Performance
• MODFLOW 6: Multiple Models - How to create multiple models in a simulation
  • Introduction to Multiple Models
  • Groundwater Flow Model Setup
  • Connecting the Flow Models
• Observations, time series and time array series
  • Observations
  • Time Series
  • Time Array Series
• Accessing MODFLOW 6 Output
  • Loading a model
  • Get output using the .output attribute
  • Get head file and cell budget file outputs
  • Get output associated with a specific package
  • Check which output types are available in a package
  • Managing multiple observation and csv file outputs in the same package
  • Creating and running ZoneBudget for MF6
• Unconfined steady-state flow model
  • Getting Started
  • Create the MODFLOW 6 Input Files and Run the Model
  • Post-Process Head Results
  • Determine the Flow Residual

MODFLOW-2005

• MODFLOW-2005 Basic stress packages
  • List of Boundaries
  • Recarray of Boundaries
  • Dictionary of Boundaries
  • MODFLOW Auxiliary Variables
  • Working with Unstructured Grids
  • Combining two boundary condition packages
• Error checking for MODFLOW-2005 models
  • Set the working directory
  • Load example dataset and change the model work space
  • The check() method
  • The check class
  • Summary array
  • Warnings:
  • example of package level check and summary file
  • example of summary output file
  • checking on write_input()
• Loading MODFLOW-2005 models
  • The load() method
  • Auxiliary variables
• Working with the Multi-node Well (MNW2) Package
  • Make an MNW2 package from scratch
  • MNW2 information by node
  • Stress period information
  • Make ModflowMnw2 package object
  • empty node_data and stress_period_data tables can also be generated by the package class, and then filled
  • Mnw objects
  • Build the same package using only the Mnw objects
  • By default, the node_data and stress_period_data tables attached to the ModflowMnw2 package class are definitive
  • Write an MNW2 package file and inspect the results
  • Load some example MNW2 packages
• SFR2 package loading and querying
• MODFLOW Tutorial 1: Confined Steady-State Flow Model
  • Creating the MODFLOW Model
  • Running the Model
  • Post-Processing the Results
• MODFLOW Tutorial 2: Unconfined Transient Flow Model
  • Creating the MODFLOW Model
  • Running the Model
  • Post-Processing the Results

MODFLOW-LGR

MODFLOW-NWT

• Working with MODFLOW-NWT v 1.1 option blocks
  • Loading a MODFLOW-NWT model that has option block options
  • Building an OptionBlock from scratch

MODFLOW USG

• Advection, Dispersion and Decay in a One-Dimensional Uniform Flow Field
  • Case 1 conducts the simulation with zero dispersion.
  • Case 2 includes a retardation of 2 by using a bulk density value of 1 kg/L and an adsorption coefficient (kd) of 0.2 L/kg.
  • Case 3 further includes a longitudinal dispersivity value of 10 feet (grid Peclet number of 1)
  • Case 4 includes a longitudinal dispersivity value of 1 feet (grid Peclet Number of 10)
  • Case 5 also includes first order decay with a half-life of 10 days (first order decay rate of 6.9315x 10-2 /day) on the simulation with the high grid Peclet Number.
• Advection and Dispersion in a Two-Dimensional Confined Radial Flow Field
  • Advection
• MF-USG Example Problems for Transport of Solute through a Conduit within a Multi-Aquifer System
• Dual Domain Transport in a One-Dimensional, Uniform Flow Field
• Henry Problem for Density-Dependent Flow and Transport
• MF-USG Verification Example for Heat and Solute Transport - Ex6 Stallman
  • Heat Transport
• MF-USG Example Problems for Matrix Diffusion Transport Package
  • Example MD1: Single Discrete Fracture
• MF-USG Example Problems for Matrix Diffusion Transport Package
  • Example MD2: Embedded Low Permeability Zones
• MF-USG Example Problems for Adsorption of PFAS Adsorption on Air-Water Interface in the Unsaturated Zone
  • Saturation of 0.68, A-W adsorption C=0.1, Kaw = 0.0027
  • Saturation of 0.68, A-W adsorption C=0.01, Kaw = 0.0040

MT3DMS

• MT3D-USGS: Transport with the SFR/LAK/UZF Packages (SFT/LKT/UZT), and chemical reactions (RCT)
  • Problem Description:
  • Write the MT3D-USGS input files for inspecting and running
• Using FloPy to simplify the use of the MT3DMS SSM package
  • Create the MODFLOW packages
  • Create the MT3DMS packages
  • Create the SEAWAT packages
• SEAWAT Tutorial 1: Henry Saltwater Intrusion Problem
  • Input variables for the Henry Problem
  • Create the basic MODFLOW model structure
  • Create the basic MT3DMS model structure
  • Create the SEAWAT model structure
  • Load the concentration data
  • Load the cell-by-cell flow data
  • Create a plot with concentrations and flow vectors
  • Load the head data
  • Create a plot with heads

PEST

• Support for PEST
  • Simple One Parameter Example
  • Multiple Parameter Zoned Approach