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Viscous Flow in Domains with Corners: Numerical Artifacts, their Origin and Removal

Abstract:

We show that an attempt to compute numerically a viscous flow in a domain with a piece-wise smooth boundary by straightforwardly applying well-tested numerical algorithms (and numerical codes based on their use, such as COMSOL Multiphysics) can lead to spurious multivaluedness and nonintegrable singularities in the distribution of the fluid's pressure. The origin of this difficulty is that, near a corner formed by smooth parts of the piece-wise smooth boundary, in addition to the solution of ...

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Publisher copy:
10.1016/j.cma.2010.12.005

Authors


Sprittles, JE More by this author
Shikhmurzaev, YD More by this author
Journal:
Computer Methods in Applied Mechanics and Engineering
Volume:
200
Issue:
9-12
Pages:
1087-1099
Publication date:
2009-04-03
DOI:
ISSN:
0045-7825
URN:
uuid:12e92e0d-326b-4779-aec7-1a31bb0b9cea
Source identifiers:
313340
Local pid:
pubs:313340
Language:
English
Keywords:

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