.TRANSFORM.Nuclear.CoreSubchannels.Regions_1.FlowModel .TRANSFORM.Nuclear.CoreSubchannels.Regions_1.FlowModelCoolant flow models (i.e., momentum, pressure loss, wall friction)
model FlowModel = TRANSFORM.Fluid.ClosureRelations.PressureLoss.Models.DistributedPipe_1D.SinglePhase_Developed_2Region_NumStable;