Examples
To get started with DuMux, we recommend the following documented examples. Each example folder contains a ready-to-use DuMux simulation example. The description in each folder (best viewed online by following the link) explains each line of the code example.
📂 Example 1: One-phase flow and tracer transport
In this example, we simulate tracer transport through a confined aquifer with a randomly distributed permeability field. We first solve the pressure field, compute the steady state flow field, and then solve the tracer transport equation. You learn how to
- generate a randomly distributed permeability field
- sequentially solve two types of problems after each other:
- solve a one-phase flow in porous media problem
- compute the flow field from a pressure solution to pass to a tracer problem
- solve an instationary tracer transport problem with a given flow field
📂 Example 2: Two-phase flow with infiltration and adaptive grid
In this example we model a soil contamination problem where DNAPL infiltrates a water-saturated porous medium (two-phase flow). The initial distribution of DNAPL is read in from a txt-file. The grid is adapitvely refined where DNAPL enters the domain, around the plume, and around an injection well. You learn how to
- solve a two-phase flow in porous media problem with two immiscible phases
- set boundary conditions and a simple injection well
- implement a problem with heterogenous material parameters
- use adaptive grid refinement around the saturation front
📂 Example 3: Shallow water model
The shallow water flow model is applied to simulate steady subcritical flow in a channel including a bottom friction model. You learn how to
- solve a shallow water flow problem including bottom friction
- computate and output (VTK) an analytical reference solution
📂 Example 4: Freeflow channel
In this example, we simulate a free flow between two plates in two dimensions. You learn how to
- solve a free flow problem
- set outflow boundary conditions in the free-flow context