.ClaRa.Basics.ControlVolumes.FluidVolumes.VolumeVLE_L4.MechanicalEquilibrium .ClaRa.Basics.ControlVolumes.FluidVolumes.VolumeVLE_L4.MechanicalEquilibriummodel MechanicalEquilibrium = ClaRa.Basics.ControlVolumes.Fundamentals.SpacialDistribution.Homogeneous_L4;