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What is Artificial Viscosity in Shock Modeling about?
This document summarizes artificial viscosity methods used to model shock wave propagation in simulations. It describes how artificial viscosity terms are added to the governing equations to spread shocks over multiple grid cells, avoiding discontinuities. The original von Neumann and Richtmyer viscosity method is outlined, which uses a term quadratic in velocity gradient. While effective, it only slowly damps oscillations behind shocks. An alternative linear viscosity term damps oscillations faster but cau
- Author
- Andrés Felipe Vélez Acevedo
- Language
- EN