Tables are one possibility, besides formulas, that allow to specify a variable (velocity, temperature, etc) along another independent variable ( e.g time or distance).
As for formulas, not every variable is allowed to be defined as a function of another variables. If tables are allowed, you can find the icon of a graph next to the variable you want to define.
Once you click on the icon, a dialogue box appears to define the table. The example below shows a table input for a time dependent temperature boundary condition. The data can be uploaded in CSV format or dynamically manipulated at the interface.
The CSV file should just contain the input values (no title, index numbers…). Every line in the text file will define a row and values separated by a comma ‘,’ will define the columns. As an easy example, the CSV file for the table seen above should be like the following:
Once the CSV file is updated, the variable for each column should be properly set. Values can be manually modified and rows/columns can be added/deleted by right click on any cell. The data from the table can always be downloaded pressing the icon next to ‘Browse files’.
Under advanced settings, two different options appear.
For the CA solver you can as well specify the interpolation type between the given value pairs. The CCX solver uses linear interpolation for nonlinear static and no interpolation (constant steps) for dynamic analyses.
For ‘Vector’ variables (e.g velocity) the table upload requires a CSV file with the independent variable and all 3 velocity component values in the order X, Y and Z for each point. Depending on the independent variable we can find two different types of table: