Modelica

Modelica is a free and open-source object-oriented, component-based modeling language for dynamic systems, used for mathematical modeling, simulation, and code generation. It supports both graphical and textual modeling notation. Modelica is designed to reduce the complexity of modeling and simulation of large-scale systems. It allows the modeling of complex physical systems using component-based modeling techniques. The Modelica language is based on the concepts of object-oriented programming and component-based modeling. It is possible to model a system at different levels of abstraction. The Modelica Standard Library is a collection of reusable models that can be used to model a wide variety of systems. Modelica is used in a wide range of industries, including automotive, aerospace, energy, process, and control systems.