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,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

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: Numerical methods | Sediment transport | Numerical models | Advection | Salts | Hydraulic models | Finite volume method | California | United States

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