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A BEM‐level set domain‐decomposition strategy for non‐linear and fragmented interfacial flows
Author(s) -
Colicchio G.,
Greco M.,
Faltinsen O. M.
Publication year - 2006
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1680
Subject(s) - solver , domain decomposition methods , domain (mathematical analysis) , boundary element method , boundary (topology) , computer science , coupling (piping) , computational fluid dynamics , interface (matter) , level set method , set (abstract data type) , algorithm , finite element method , mathematical optimization , mathematics , mechanics , mathematical analysis , physics , mechanical engineering , engineering , structural engineering , parallel computing , artificial intelligence , segmentation , image segmentation , programming language , bubble , maximum bubble pressure method
A domain‐decomposition algorithm has been developed to handle two‐phase flows with large deformation, breaking and fragmentation of the interface. The strategy couples a boundary element method with a Navier–Stokes solver combined with a level‐set technique for the tracking of the interface. The former is used in the fluid region where the interface can be modelled as a smooth surface. In the rest of the domain the field solver is applied. This results in an efficient and accurate method. In this paper, the features of the used strategy are described and the challenges connected with the coupling are deeply discussed. The numerical investigation highlighted the importance of a proper rational study when CFD methods are considered. In the present case, a crucial aspect is represented by the domain‐composition step, that is when the information from one solver to the other have to be properly reconstructed and made consistent with the receiver sub‐domain. Copyright © 2006 John Wiley & Sons, Ltd.