Comparison of Advective Transport Algorithms with an Application in Suisun Bay, a Sub-Embayment of San Francisco Bay, California

by Jon R. Burau, Stanford Univ, Stanford, United States,
Stephen Monismith, Stanford Univ, Stanford, United States,
Jeffrey Koseff, Stanford Univ, Stanford, United States,



Abstract: This paper examines the conservative properties of several numerical treatments of the salt conservation equation. Specifically, computationally efficient first and second order Eulerian-Lagrangian Methods (ELM) are compared against (1) fully conservative finite volume methods including upwind, LUICKEST and QUICKEST. This paper shows that under the numerically rigorous requirements of long-term estuarine transport, that the non-conservative nature of ELM may be problematic. Moreover, solution of advective terms using any of these methods is shown to be a small percentage of the overall computational effort in hydrodynamic models: arguments over their relative computational efficiency is merely academic.

Subject Headings: Bays | Advection | Numerical methods | Comparative studies | Algorithms | Sediment transport | Computing in civil engineering | Finite volume method | Hydraulic models | Estuaries | Salts | North America | California | United States

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