.ClaRa.Components.VolumesValvesFittings.Pipes.Header.MechanicalEquilibrium .ClaRa.Components.VolumesValvesFittings.Pipes.Header.MechanicalEquilibriummodel MechanicalEquilibrium = ClaRa.Basics.ControlVolumes.Fundamentals.SpacialDistribution.Homogeneous_L4;