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Numerical Waterbody Dynamics and Small Computers

by John Eric Edinger, J. E. Edinger Associates Inc, Wayne, PA, USA,
Edward M. Buchak, J. E. Edinger Associates Inc, Wayne, PA, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

The numerical hydrodynamics of free surface flows as applied to waterbodies presents a number of challenges, including choice of the spatial differencing schemes including representation of waterbody geometry and boundary conditions, choice of the methods of temporally integrating the hydrodynamic equations and choice of solution techniques for the various unknowns. The two limitations of a small computer in hydrodynamic computations are storage space and computational speed. These can be accommodated by minimizing the number of spatial and temporal arrays of the variables and choosing integration techniques that quickly dampen initialization effects and can be carried out for long simulation time steps.

Subject Headings: Hydrodynamics | Computer models | Computer programming | Numerical models | Numerical methods | Computing in civil engineering | Overland flow

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