Numerical Models for Two-Dimensional Surface Runoff

by J. M. Hamrick, Univ of Virginia, Dep of Civil, Engineering, Charlottesville, VA, USA,
T. S. Tisdale, Univ of Virginia, Dep of Civil, Engineering, Charlottesville, VA, USA,
S. L. Yu, Univ of Virginia, Dep of Civil, Engineering, Charlottesville, VA, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

Numerical models for surface runoff in watersheds having two-dimensional or horizontally varying topography are presented. Two finite element methodologies, a standard Galerkin and a streamline upwind modified Galerkin, applied to the two-dimensional kinematic wave approximations of the momentum and continuity equations form the basis of the models. Results for the simulation of a prototype situation having time varying rainfall are presented.

Subject Headings: Two-dimensional models | Finite element method | Numerical models | Runoff | Rainfall-runoff relationships | Kinematic waves | Surface waves

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