The Initial Values node adds the initial values for the concentration of each species to be specified. These serve as an initial guess for a stationary solver or as an initial condition for a transient simulation.

Add multiple Initial Values nodes with different domain selections to define different initial values in different domains.

Setting all the Concentration (SI unit: mol/m3) initial values to 0 may lead solver convergence problems, for instance in models using concentration dependent kinetics in an Electrode Reaction node. Using small positive values instead of 0 may mitigate such issues.