Simulation of fluid-structure interaction (FSI) of flexible bodies are challenging due to complex geometries and freely moving boundaries. Immersed boundary method has found to be an efficient technique for dealing with FSI problems because of the use of non-body-fitted mesh and simple implementation. In the present work, we developed a FSI solver by coupling a direct forcing immersed boundary method for the fluid with a finite difference method of the structure. Several flow problems are simulated to validate our method. The testing cases include flow over a stationary cylinder and flat plate, two-dimensional flow past an inextensible flexible filament and three-dimensional flow past a flag. The results obtained agree well with those from previously published literatures.
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ASME 2013 Fluids Engineering Division Summer Meeting
July 7–11, 2013
Incline Village, Nevada, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5554-6
PROCEEDINGS PAPER
An Improved Direct-Forcing Immersed Boundary Method for Fluid-Structure Interaction Simulations
Xing Zhang,
Xing Zhang
Chinese Academy of Sciences, Beijing, China
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Xiaojue Zhu,
Xiaojue Zhu
Chinese Academy of Sciences, Beijing, China
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Guowei He
Guowei He
Chinese Academy of Sciences, Beijing, China
Search for other works by this author on:
Xing Zhang
Chinese Academy of Sciences, Beijing, China
Xiaojue Zhu
Chinese Academy of Sciences, Beijing, China
Guowei He
Chinese Academy of Sciences, Beijing, China
Paper No:
FEDSM2013-16472, V01AT08A005; 6 pages
Published Online:
December 13, 2013
Citation
Zhang, X, Zhu, X, & He, G. "An Improved Direct-Forcing Immersed Boundary Method for Fluid-Structure Interaction Simulations." Proceedings of the ASME 2013 Fluids Engineering Division Summer Meeting. Volume 1A, Symposia: Advances in Fluids Engineering Education; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods. Incline Village, Nevada, USA. July 7–11, 2013. V01AT08A005. ASME. https://doi.org/10.1115/FEDSM2013-16472
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