Fluid-structure interaction (FSI) effects must be considered when flexible structures are subjected to unsteady flows. Large-scale unsteady flows can excite structural vibrations significantly and cause the fluid flow to be altered by the large amplitude vibrations. In this work, an in-house finite-element structural code FEANL is tightly coupled with the open-source computational-fluid dynamics (CFD) library package OpenFOAM to simulate the interaction of a backward-skewed, flexible hydrofoil with vortical flow structures shed from a large upstream rigid cylinder in the Penn State-ARL 12” water tunnel. To simulate the turbulent flow at a moderate computational cost, hybrid LES-RANS approaches, i.e. Delayed-Detached-Eddy-Simulation (DDES) and k–ω SST-SAS, are used. The hybrid approaches have been widely employed to simulate massively-separated flows at moderately high Reynolds numbers. Both of the turbulence models are used for a coarse mesh CFD-only case (no FSI effects by assuming a rigid structure) to test their capabilities, and the results of the two models are compared. DDES is chosen to simulate a fine mesh CFD-only case to conduct a mesh convergence study, and it is then used for final FSI simulations. The purpose of this work is focused on obtaining computational results; detailed comparisons against experimental data will be made in future work.
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ASME 2014 International Mechanical Engineering Congress and Exposition
November 14–20, 2014
Montreal, Quebec, Canada
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4962-0
PROCEEDINGS PAPER
Coupled FSI Simulations of the Interaction of a Flexible Hydrofoil With Large Scale Unsteady Flows
Abe H. Lee,
Abe H. Lee
Pennsylvania State University, University Park, PA
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Robert L. Campbell,
Robert L. Campbell
Pennsylvania State University, University Park, PA
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Brent A. Craven,
Brent A. Craven
Pennsylvania State University, University Park, PA
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Stephen A. Hambric
Stephen A. Hambric
Pennsylvania State University, University Park, PA
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Abe H. Lee
Pennsylvania State University, University Park, PA
Robert L. Campbell
Pennsylvania State University, University Park, PA
Brent A. Craven
Pennsylvania State University, University Park, PA
Stephen A. Hambric
Pennsylvania State University, University Park, PA
Paper No:
IMECE2014-40368, V013T16A006; 13 pages
Published Online:
March 13, 2015
Citation
Lee, AH, Campbell, RL, Craven, BA, & Hambric, SA. "Coupled FSI Simulations of the Interaction of a Flexible Hydrofoil With Large Scale Unsteady Flows." Proceedings of the ASME 2014 International Mechanical Engineering Congress and Exposition. Volume 13: Vibration, Acoustics and Wave Propagation. Montreal, Quebec, Canada. November 14–20, 2014. V013T16A006. ASME. https://doi.org/10.1115/IMECE2014-40368
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