Optionally, a User-added thermodynamic subroutine may use up to 2600 parameters supplied by the User. These are available to the subroutine via the TDATA array in the CUDATA common block. Typical usage would be to pass in application-specific data to a subroutine written to cover a variety of cases.
Usage
From the Thermodynamic System - Modification Window, push the Enter Data button by the property method for which property-specific data are to be accessed. From the Thermodynamic Property Modification Window, push the Enter Data button corresponding to the desired Data Item "User-added Parameters".
In the grid on the User-added Parameters window, each row represents one parameter. The Parameter Number field is an integer corresponding to the element in the data array. The Parameter Value field is a real number giving the value of that parameter. Both columns in a given row must be filled in for that parameter to be saved.
Press the OK button to exit the window.
Thermodynamics - Technical Information
Thermodynamics - User-added Methods
Thermodynamics - User-added Transport Properties