Setting Global Conditions

This section or topic is specific to Console Mode.

Use SET_CONDITION and choose Global. Global conditions include temperature (T), heat content removal (Q) and pressure (P), and these reduce the degrees of freedom for equilibrium calculations.

About Global Conditions

If the heat content removal is specified then only the initial temperature should be entered with the SET_INITIAL_TEMPERATURE command.

  • In practice, the pressure is rarely specified. By default the pressure is assumed to be constant and equal to 1 bar.
  • For each condition, you can define a profile over time that consists of several intervals of time, or ranges, with each range having its own function to define the value of the condition.
  • Temperature can be entered as a function of time (TIME) and/or spatial coordinate (X). The pressure condition can be defined as a function of time (TIME). The heat content removal can be defined as a function of temperature (T), pressure (P) and/or time (TIME).

    For example, the following function could specify a cooling rate if it is used to specify how the global condition temperature (T) changes with time (TIME) during a certain range: 1900-1*TIME;

  • Temperature can also be entered as time/temperature pair values.