Fluid-structure interactions are complex, multi-physics phenomena of consequence for many fluid-flow domains. Modern multi-physics codes are becoming capable of simulating with great accuracy the interaction between fluid and structure dynamics. While fluid-structure interactions can occur in many forms, flow-induced vibrations are of particular interest. Such vibrations can result in the fatigue and even failure of a vibrating geometry. The prediction and minimization of flow induced vibrations are of particular importance for heat exchangers, which commonly contain bundles of tubes experiencing high-velocity crossflow. The present study simulates the fluid-structure interaction for flexibly mounted tube bundles undergoing crossflow and compares the results with experiment. The simulation code consists of a spectral-element fluid solver directly coupled with a finite-element solid mechanics solver. The fluid solver locally adapts the fluid mesh to accommodate the moving solids. In order to minimize computational expense, low Reynolds number flows are considered, allowing for a thin, pseudo 2-D domain. The flow remains laminar for the majority of the domain, with local areas of turbulence. The pins are connected to springs that supply a restorative force equivalent to the flexible mounts of the corresponding experiment. Fluid-only simulations are performed for flow spanning low to moderate velocities and compared visually with experimental flow visualizations. Coupled fluid-structure interactions are simulated with low velocity and vibration amplitudes. The measured vibration amplitudes of the simulation agree well with those of the experiment.
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ASME 2017 Fluids Engineering Division Summer Meeting
July 30–August 3, 2017
Waikoloa, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5805-9
PROCEEDINGS PAPER
Simulation of Fluid-Structure Interaction of Crossflow Through a Tube Bundle and Experimental Validation Available to Purchase
Landon Brockmeyer,
Landon Brockmeyer
Texas A&M University, College Station, TX
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Jerome Solberg,
Jerome Solberg
Lawrence Livermore National Laboratory, Livermore, CA
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Elia Merzari,
Elia Merzari
Argonne National Laboratory, Lemont, TX
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Yassin Hassan
Yassin Hassan
Texas A&M University, College Station, TX
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Landon Brockmeyer
Texas A&M University, College Station, TX
Jerome Solberg
Lawrence Livermore National Laboratory, Livermore, CA
Elia Merzari
Argonne National Laboratory, Lemont, TX
Yassin Hassan
Texas A&M University, College Station, TX
Paper No:
FEDSM2017-69360, V01BT11A019; 7 pages
Published Online:
October 24, 2017
Citation
Brockmeyer, L, Solberg, J, Merzari, E, & Hassan, Y. "Simulation of Fluid-Structure Interaction of Crossflow Through a Tube Bundle and Experimental Validation." Proceedings of the ASME 2017 Fluids Engineering Division Summer Meeting. Volume 1B, Symposia: Fluid Measurement and Instrumentation; Fluid Dynamics of Wind Energy; Renewable and Sustainable Energy Conversion; Energy and Process Engineering; Microfluidics and Nanofluidics; Development and Applications in Computational Fluid Dynamics; DNS/LES and Hybrid RANS/LES Methods. Waikoloa, Hawaii, USA. July 30–August 3, 2017. V01BT11A019. ASME. https://doi.org/10.1115/FEDSM2017-69360
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