On The Application of Artificial Viscosity in Computational Hydraulics

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by Nosrat Maghsoudi, Consulting Hydraulic Engineer, Lafayette, United States,
D. B. Simons, Consulting Hydraulic Engineer, Lafayette, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering:

Abstract: Artificial viscosity is a particular kind of truncation error that is either implicity present or explicitly added to the finite difference schemes. It is shown that the method of lines along characteristics solution of transient flow equations provides an optimal amount of artificial viscosity that damps numerical oscillations and prevents computational instability.

Subject Headings: Viscosity | Transient flow | Computing in civil engineering | Numerical methods | Viscous flow | Hydraulic transients | Fluid flow | Oscillatory flow |

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