Solving the Two-Dimensional Diffusion Flow Model

by T. V. Hromadka, II, US Geological Survey, Water, Resources Div, Reston, VA, USA,
Chintu Lai, US Geological Survey, Water, Resources Div, Reston, VA, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract: A simplification of the two-dimensional (2-D) continuity and momentum equations is the diffusion equation. To investigate its capability, the numerical model using the diffusion approach is applied to a hypothetical failure problem of a regional water reservoir. The model is based on an explicit, integrated finite-difference scheme, and the floodplain is simulated by a popular home computer which supports 64K FORTRAN. Though simple, the 2-D model can simulate some interesting flooding effects that a 1-D full dynamic model cannot.

Subject Headings: Two-dimensional models | Hydrologic models | Computer models | Simulation models | Two-dimensional flow | Failure analysis | Flow simulation | Diffusion

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