Journal
JOURNAL OF COMPUTATIONAL PHYSICS
Volume 257, Issue -, Pages 83-101Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcp.2013.08.052
Keywords
Penalization technique; Unstructured mesh; Level set; Anisotropic mesh; Mesh adaptation; Embedded method; Navier-Stokes equations
Funding
- EU ERC Advanced grant ADDECCO [226616]
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The interest on embedded boundary methods increases in Computational Fluid Dynamics (CFD) because they simplify the mesh generation problem in the case of the Navier-Stokes equations. The same simplifications occur for the simulation of multi-physics flows, the coupling of fluid-solid interactions in situation of large motions or deformations, to give a few examples. Nevertheless an accurate treatment of the wall boundary conditions remains an issue of the method. In this work, the wall boundary conditions are easily taken into account through a penalization technique, and the accuracy of the method is recovered using mesh adaptation, thanks to the potential of unstructured meshes. Several classical examples are used to demonstrate that claim. (C) 2013 Elsevier Inc. All rights reserved.
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