Values associated with the Nozzle Geometry are displayed on the NozzGeo tab.

Enter a Nozzle discharge Coefficient (values from 0 - 1) and the "real" mass flow rate passed is displayed from the Nozzle mass flow either calculated or entered on the Nozzle page.

The Round nozzle geometry is displayed in the text boxes below this.

If the NPR is greater than critical then the exit area is shown underneath the Divergent Exit title. This assumes the flow is fully expanded.

If a Rectangular Nozzle is desired then the values can be calculated in the text boxes within the Rectangular Nozzle Geometry container.
Enter an Aspect Ratio and press the Calc button.