# Running a Simulation¶

To simulate the spatial model, click on the “Simulate” tab, specify the simulation time and desired interval between images, then click “Simulate”.

The default simulation type is DUNE, which is a high-quality FEM solver. An alternative type is Pixel, which provides fast (but less reliable) results. The simulation type can be chosen by clicking on Tools->Set simulation type.

The resulting average species concentrations are plotted as a function of time. A snapshot of the spatial distribution is shown on the left, and the slider below the plot can be used to change the time that is being displayed. A 1d slice of the image as a function of time can also be generated.