AFT Blog

To choose only English or SI units for all parameters, select Parameter and Unit Preferences from the Options menu, then select the Unit Preferences tab, choose the Default Unit System and click the Apply Default Units button. This will use will the default units and change the preferred units.

Very large and complex models may be constructed by building smaller models and merging them together. It is a good idea to break the large system into logical parts where there are known boundary conditions (flowrates or pressures).