.ThermofluidStream.Undirected.Topology.Tests.TestJunction.pLoss .ThermofluidStream.Undirected.Topology.Tests.TestJunction.pLossfunction pLoss = ThermofluidStream.Processes.Internal.FlowResistance.laminarTurbulentPressureLoss(material = ThermofluidStream.Processes.Internal.Material.wood);