River Withdrawal Nodes Flows

Water is withdrawn from withdrawal nodes (WN) and delivered via transmission links to satisfy supply requirements at demand sites. The amount to withdraw, from zero up to the full supply requirement, is computed within the context of all demand and instream flow requirements, available supplies, demand priorities, supply preferences and other constraints. The downstream outflow from the withdrawal node equals the inflows from upstream, plus demand site (DS) and treatment plant (TP) return flows that come in at that point, minus the withdrawal to all connected demand sites.

DownstreamOutflowWN = UpstreamInflowWN + DSReturnFlowDS,WN + TPReturnFlowTP,WN - TransLinkInflowWN,DS