Journal of Theoretical
and Applied Mechanics
35, 2, pp. 233-248, Warsaw 1997
and Applied Mechanics
35, 2, pp. 233-248, Warsaw 1997
New quasi-natural artificial viscosity models for compressible fluid flow, with an improved entropy production mechanism
The paper presents formulation of artificial viscosity models based on the principle of entropy production for viscous compressible flows. An application of the derived models implemented in an h adaptive finite element code to a benchmark ramp test problem is included as a practical test of their performance.
Keywords: artificial viscosity; compressible fluid flow; entropy production