A robust overset assembly method for multiple overlapping bodies

Summary A robust overset assembly method allowing for multiple overlapping bodies is presented. This method extends the overset assembly method to deal with the interference between objects and prevents the failure of the search for donor cells due to the complex shape of the models. The donor cells...

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Bibliographic Details
Published in:International journal for numerical methods in fluids Vol. 93; no. 3; pp. 653 - 682
Main Authors: Hu, Zhiyuan, Xu, Guohua, Shi, Yongjie
Format: Journal Article
Language:English
Published: Hoboken, USA John Wil5ey & Sons, Inc 01.03.2021
Wiley Subscription Services, Inc
Subjects:
Assembly
Cell culture
Cells
chimera assembly
Computational fluid dynamics
Computer applications
Fluid dynamics
Hydrodynamics
Interpolation
overlapping bodies
overset assembly
Robustness
Think tanks
ISSN:0271-2091, 1097-0363
Online Access:Get full text
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Summary:Summary A robust overset assembly method allowing for multiple overlapping bodies is presented. This method extends the overset assembly method to deal with the interference between objects and prevents the failure of the search for donor cells due to the complex shape of the models. The donor cells are searched before identifying the boundary of the chimera interpolation. By selecting interpolation cells only in areas with donor cells, the final overset interpolation boundary cells can always find their donor cells, which prevents orphan points and achieves excellent robustness. First, the implementation of the proposed assembly method is described in detail. Subsequently, the usability and efficiency of the method are verified using several cases. Finally, the integration strategy of the computational fluid dynamics solver based on overset interpolation with the modification of the boundary type is described and verified using practical cases with overlapping bodies. The results demonstrate the applicability of the proposed overset grid assembly method. 1. We present a new overset assembly method allowing for multiple overlapping bodies by searching the donor cell before identifying the interpolation boundary. 2. It shows good ability to eliminate “isolated island” and “orphan point” problems by selecting interpolation cells only in areas with donor cells. 3. It was properly validated by several cases and the efficiency of the overset assembly was significantly higher than other similar overset assembly programs.
Bibliography:Funding information
Priority Academic Program Development of Jiangsu Higher Education Institutions
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0271-2091
1097-0363
DOI:10.1002/fld.4903