Convergence results for the vector penalty-projection and two-step artificial compressibility methods
Abstract
In this paper, we propose and analyze a new artificial compressibility splitting method which is issued from the recent vector penalty-projection method for the numerical solution of unsteady incompressible viscous flows introduced in [1], [2] and [3]. This method may be viewed as an hybrid two-step prediction-correction method combining an artificial compressibility method and an augmented Lagrangian method without inner iteration. The perturbed system can be viewed as a new approximation to the incompressible Navier-Stokes equations. In the main result, we establish the convergence of solutions to the weak solutions of the Navier-Stokes equations when the penalty parameter tends to zero.
Domains
Mathematics [math] Analysis of PDEs [math.AP] Mathematics [math] Numerical Analysis [math.NA] Physics [physics] Physics [physics] Fluid Dynamics [physics.flu-dyn] Engineering Sciences [physics] Mechanics [physics.med-ph] Fluids mechanics [physics.class-ph] Physics [physics] Mechanics [physics] Fluid mechanics [physics.class-ph]
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