Computation of the 3-D Unsteady Flow Past Deforming Geometries
作者:
RAVI RAMAMURTI,
RAINALD LÖHNER,
WILLIAMC. SANDBERG,
期刊:
International Journal of Computational Fluid Dynamics
(Taylor Available online 1999)
卷期:
Volume 13,
issue 1
页码: 83-99
ISSN:1061-8562
年代: 1999
DOI:10.1080/10618569908940891
出版商: Taylor & Francis Group
关键词: Deforming geometry;adaptive remeshing;incompressible flow;blue-fin tuna
数据来源: Taylor
摘要:
A 3-D incompressible unsteady flow solver based on simple finite elements with adaptive remeshing and grid movement for both moving and deforming surfaces is described. We demonstrate the combination of adaptive remeshing techniques with the incompressible flow solver with the computation of flow past an eel in 2-D and a blue-fin tuna in 3-D. The flow past a swimming tuna was computed for two extreme cases of the caudal fin frequency and swimming speed. A grid refinement study was performed and a grid converged solution for the force produced by the caudal fin was obtained.
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