Access Python user model variable value when controling DWsim via an external Python

[Hugo Brunner]

Hello,

How can I modify variables of a User model written as a Python script when controlling DWSIM externally via Python using Python.NET?

For example, if I have a script that simulates a thermal storage system, where one of the input variables (other than fluid streams) is its volume, and I would like to modify it dynamically (for example to find an optimal shape), how can I do that?

Is it with the scripting variables? If yes, how can I do that? Are they avalaible when controling DWsim through an external Python via Python.NET?

Thank you in advance and have a good day,

[Daniel Medeiros]

you have to define the variable in the location you took the screenshot of and access it with

myop.InputVariables['volume'] = 100

[Hugo Brunner]

Thank you for your answer.

So in the Python code that controls the DWsim flowsheet, when I would want to change the "volume", I will write the following line that you sent?
myop.InputVariables['volume'] = 100
The name of the scripting variable would be "volume" in my example (like in this screenshot)? The "myop" is the name to access the unit operation? How do I set it up?

And in the Python code of the unit operation, what do I change to make the link with this variable and the unit operation code?

[Hugo Brunner]