.ClaRa.Basics.ControlVolumes.FluidVolumes.VolumeVLEGas_L3.PressureLoss .ClaRa.Basics.ControlVolumes.FluidVolumes.VolumeVLEGas_L3.PressureLoss1st: choose friction model | 2nd: edit corresponding record
model PressureLoss = ClaRa.Basics.ControlVolumes.Fundamentals.PressureLoss.Generic_PL.LinearParallelZones_L3;