SET_NUMERICAL_LIMITS

Set parameters to control the integration, the solution of the flux balance equations, diffusion equations and the equilibrium calculation during the simulation.

The Diffusion Module (DICTRA) in Graphical Mode uses a Diffusion Calculator instead of the Console Mode commands. Most of the Console Mode functionality is available on the Diffusion Calculator. However, you cannot use both Graphical Mode and Console Mode in the same simulation.

Syntax	set_numerical_limits
Prompts	Required sum of squares in NS01A Required accuracy during the solution of the flux-balance equations.
	Max number of calls to Calfun of NS01A The maximum number of iterations when solving the flux-balance equations. This number acts as a safety valve, a moderate choice is 10(number_of_interfaces (number_of_components - 1)) but use a larger value if necessary.
	Step used by NS01A A user supplied parameter which is used to calculate the estimates of the partial derivatives numerically when solving the flux-balance equations.
	Max step used by NS01A A parameter which must be set to a generous estimate of the 'distance' between the initial approximation and the required solution of the flux-balance equations.
	Max number of equidistant points in a region The number of equidistant parts in which a region is divided into that is required to describe the profile. This parameter is used by the procedure that removes unnecessary gridpoints from the profile during the simulation; the number of gridpoints is normally not allowed to be less than this number if a linear grid is used.
	Fraction of region assigned to the interface Fraction of a region at the region border that is to be regarded as part of the interface. This parameter is used by the procedure that removes unnecessary gridpoints from the profile during the simulation.
	Smallest number used in scaling flux equations The flux-balance equations are scaled by the velocities calculated in the previous time step. This number may however decrease to such a small value so that convergence may be affected. The scaling factor is therefore not allowed to decrease below this value.
	Default driving force for inactive phases Sets the necessary driving force needed before an inactive phase is allowed to start to precipitate.