In order to use the characteristic number calculator some prerequisites have to be fulfilled.
At least one phase of the currently selected material must be set to liquid
This phase must be selected.
The material parameters needed for the specific characteristic number must be defined correctly in the selected phase.
In the following it is described how to calculate characteristic numbers:
Open the Materials dialog in the Settings menu.
Select a material containing a liquid phase filling the region of interest.
If the material is a multiphase one, select the liquid phase.
Click on the Characteristic Numbers button.
The Characteristic Numbers dialog opens.
Type in the values for the characteristic temperature, the length, the temperature gradient and the velocity
Press the Apply button.
Depending on the material parameters defined in the selected phase and the gas pressure in the Process Parameters dialog several values will be displayed at the same time.
If you want to compute characteristic numbers for different values of e.g velocities, you can change the value in the text field and press Apply again.
