Role of Small Computers in Two-Dimensional Flow Modeling

by D. Michael Gee, Hydrologic Engineering Cent, Computer Support Cent, Davis, CA, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

This paper describes the computational aspects and computer usage history of numerical simulations of horizontal, free surface, steady or unsteady two-dimensional flow fields. The focus is on a particular numerical model (RMA-2) that has been in use and development at the Hydrologic Engineering Center (HEC) and elsewhere for the past decade. RMA-2 solves the complete Reynold's equations for turbulent flow in two dimensions using the finite element method. Terms describing bottom friction, surface wind, and Coriolis forces are included. RMA-2 may be used as a driver for sediment transport and water quality simulations as well as for computing hydrodynamic information only.

Subject Headings: Numerical models | Computer models | Two-dimensional models | Two-dimensional flow | Finite element method | Hydrologic models | Turbulent flow

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