TITLE

A multiscale stabilized ALE formulation for incompressible flows with moving boundaries

AUTHOR(S)
Calderer, Ramon; Masud, Arif
PUB. DATE
June 2010
SOURCE
Computational Mechanics;Jun2010, Vol. 46 Issue 1, p185
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This paper presents a variational multiscale stabilized finite element method for the incompressible Navier–Stokes equations. The formulation is written in an Arbitrary Lagrangian–Eulerian (ALE) frame to model problems with moving boundaries. The structure of the stabilization parameter is derived via the solution of the fine-scale problem that is furnished by the variational multiscale framework. The projection of the fine-scale solution onto the coarse-scale space leads to the new stabilized method. The formulation is integrated with a mesh moving scheme that adapts the computational grid to the evolving fluid boundaries and fluid-solid interfaces. Several test problems are presented to show the accuracy and stability of the new formulation.
ACCESSION #
49782279

 

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