.TRANSFORM.Fluid.ClosureRelations.HeatTransfer.Models.DistributedPipe_1D_MultiTransferSurface.BaseClasses.SinglePhase.Nu_Gnielinski .TRANSFORM.Fluid.ClosureRelations.HeatTransfer.Models.DistributedPipe_1D_MultiTransferSurface.BaseClasses.SinglePhase.Nu_Gnielinski