Analysis of Stabilization Operators in a Galerkin Least-Squares Finite Element Discretization of the Incompressible Navier-Stokes Equations

摘要

In this paper the design and analysis of a dimensionally consistent stabilization operator for a time-discontinuous Galerkin least-squares finite element method for unsteady viscous flow problems governed by the incompressible Navier-Stokes equations, is discussed. The analysis results in a class of stabilization operators which satisfy essential conditions for the stability of the numerical discretization.