An Extended Relaxation Technique for Unsteady Flows in Networks

by J. M. Lewis,
D. L. Fread,
Ming Jin,

Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water


A recent enhancement to the FLD WAY model is the addition of an extended relaxation technique for modeling unsteady flows in a dendritic (tree-type) network of channels with tributaries of nth (any) order. The current relaxation technique is limited to first-order tributaries. By applying a particular numbering scheme to the tributaries and adding a simple algorithm, the current relaxation algorithm is extended to river systems with nth-order tributaries while retaining its inherent computational efficiency and providing greater applicability.

Subject Headings: Relaxation (mechanics) | Unsteady flow | Algorithms | Channels (waterway) | Flood routing | River systems | River flow

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