This information is part of the Modelica Standard Library maintained by the Modelica Association.
Library Modelica.Fluid is a free Modelica package providing components for 1-dimensional thermo-fluid flow in networks of pipes. A unique feature is that the component equations and the media models as well as pressure loss and heat transfer correlations are decoupled from each other. All components are implemented such that they can be used for media from the Modelica.Media library. This means especially that an incompressible or compressible medium, a single or a multiple substance medium with one or more phases might be used.