Modelica comes to mind. https://media.springernature.com/lw685/springer-static/image/prt%3A978-3-030-44184-5%2F12/MediaObjects/978-3-030-44184-5_12_Part_Fig1-1

Modelica comes to mind. https://media.springernature.com/lw685/springer-static/image/prt%3A978-3-030-44184-5%2F12/MediaObjects/978-3-030-44184-5_12_Part_Fig1-140_HTML.png https://media.springernature.com/lw685/springer-static/image... https://en.wikipedia.org/wiki/Modelica https://en.wikipedia.org/wiki/Modelica