.ClaRa_Obsolete.SubSystems.ConvectiveHeatingPart_4SH.PressureLoss_SH3 .ClaRa_Obsolete.SubSystems.ConvectiveHeatingPart_4SH.PressureLoss_SH3model PressureLoss_SH3 = ClaRa.Basics.ControlVolumes.Fundamentals.PressureLoss.Generic_PL.LinearPressureLoss_L4;