Time step limitations

For each component the maximum allowable time step is determined by the advective and dispersive Courant number.

The advective Courant number in the x-direction, s_x, is defined as:

(33.1)   

and the dispersive Courant number, G_x, is defined as:

(33.2)   

The limitations are different in each flow component and will be described in more detail under the respective flow component sections.

You can also specify a maximum time step for each component, as well as a limiting solute flux per time step.