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Title: High fidelity simulation and validation of crossflow through a tube bundle and the onset of vibration

Abstract

Flow induced vibrations can be detrimental to all manner of engineering applications with fluid flow. Heat exchangers with bundles of thin tubes experiencing a crossflow are especially susceptible to the unexpected onset of vibration. Heat-exchanger design necessarily involves extensive modeling and testing to ensure that significant vibrations cannot develop for any expected flow conditions. A properly validated numerical simulation can work in conjunction with physical experiments to identify problematic vibrations and allow for rapid iteration of design at relatively low expense. A high-fidelity fluid–structure interaction code has been developed by fully coupling CFD LES/DNS code Nek5000 and CSM code Diablo. The coupled code is used to simulate crossflow through a tube bundle in a geometry recreated after a physical experiment. Validation against this experiment involves comparing the amplitude and frequency spectrum for three different flow velocities. The velocities compared straddle the onset of large magnitude vibrations. The simulation accurately captures the onset of the vibrations with a marginally lower predicted frequency of vibration. When the onset velocity is compensated for the difference in natural frequency, the simulation results closely match the experiment. Finally, the continuous nature of the simulation measurements helps illustrate the fluid mechanics behind the pin motion andmore » reveals the front to back propagation of the vibrations as the fluid velocity increases.« less

Authors:
 [1];  [1];  [2];  [3];  [4]
+ Show Author Affiliations
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Framatome Inc. (United States)
  4. Texas A & M Univ., College Station, TX (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC)
OSTI Identifier:
1668479
Alternate Identifier(s):
OSTI ID: 1564597
Report Number(s):
LLNL-JRNL-814835
Journal ID: ISSN 0020-7462; 1023786
Grant/Contract Number:  
AC52-07NA27344; AC02- 06CH11357; AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Non-Linear Mechanics
Additional Journal Information:
Journal Volume: 117; Journal Issue: na; Journal ID: ISSN 0020-7462
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; nuclear science and engineering; mechanical and civil engineering; flow-induced vibrations; fluid-structure interaction; LES; crossflow; validation

Citation Formats

Brockmeyer, Landon, Merzari, Elia, Solberg, Jerome, Karazis, Kostas, and Hassan, Yassin. High fidelity simulation and validation of crossflow through a tube bundle and the onset of vibration. United States: N. p., 2019. Web. doi:10.1016/j.ijnonlinmec.2019.07.016.
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Brockmeyer, Landon, Merzari, Elia, Solberg, Jerome, Karazis, Kostas, & Hassan, Yassin. High fidelity simulation and validation of crossflow through a tube bundle and the onset of vibration. United States. doi:https://doi.org/10.1016/j.ijnonlinmec.2019.07.016
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Brockmeyer, Landon, Merzari, Elia, Solberg, Jerome, Karazis, Kostas, and Hassan, Yassin. Thu . "High fidelity simulation and validation of crossflow through a tube bundle and the onset of vibration". United States. doi:https://doi.org/10.1016/j.ijnonlinmec.2019.07.016. https://www.osti.gov/servlets/purl/1668479.
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@article{osti_1668479,
title = {High fidelity simulation and validation of crossflow through a tube bundle and the onset of vibration},
author = {Brockmeyer, Landon and Merzari, Elia and Solberg, Jerome and Karazis, Kostas and Hassan, Yassin},
abstractNote = {Flow induced vibrations can be detrimental to all manner of engineering applications with fluid flow. Heat exchangers with bundles of thin tubes experiencing a crossflow are especially susceptible to the unexpected onset of vibration. Heat-exchanger design necessarily involves extensive modeling and testing to ensure that significant vibrations cannot develop for any expected flow conditions. A properly validated numerical simulation can work in conjunction with physical experiments to identify problematic vibrations and allow for rapid iteration of design at relatively low expense. A high-fidelity fluid–structure interaction code has been developed by fully coupling CFD LES/DNS code Nek5000 and CSM code Diablo. The coupled code is used to simulate crossflow through a tube bundle in a geometry recreated after a physical experiment. Validation against this experiment involves comparing the amplitude and frequency spectrum for three different flow velocities. The velocities compared straddle the onset of large magnitude vibrations. The simulation accurately captures the onset of the vibrations with a marginally lower predicted frequency of vibration. When the onset velocity is compensated for the difference in natural frequency, the simulation results closely match the experiment. Finally, the continuous nature of the simulation measurements helps illustrate the fluid mechanics behind the pin motion and reveals the front to back propagation of the vibrations as the fluid velocity increases.},
doi = {10.1016/j.ijnonlinmec.2019.07.016},
journal = {International Journal of Non-Linear Mechanics},
number = na,
volume = 117,
place = {United States},
year = {2019},
month = {8}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI:  https://doi.org/10.1016/j.ijnonlinmec.2019.07.016
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Figures / Tables:

Figure 1 Figure 1: Instantaneous velocity magnitude field in cm/s. Flow inlet is left surface with laminar flow at 20.8 cm/s.
All figures and tables (21 total)
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Works referenced in this record:

Multi-modes approach to modelling of vortex-induced vibration
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The immersed boundary method
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Added-mass effect in the design of partitioned algorithms for fluid–structure problems
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An overview of modeling and experiments of vortex-induced vibration of circular cylinders
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On the coefficients of the interaction forces in a two-phase flow of a fluid infused with particles
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Revised Prandtl mixing length model applied to the two-dimensional turbulent classical wake
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Methods for numerical study of tube bundle vibrations in cross-flows
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On the number of tube rows required to study cross-flow induced vibrations in tube banks
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Damping for large-amplitude vibrations of plates and curved panels, Part 1: Modeling and experiments
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Nonlinear damping in large-amplitude vibrations: modelling and experiments
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    Figures / Tables found in this record:

    Figure 1 (p. 10)figure
    Figure 2 (p. 11)figure
    Figure 3 (p. 16)figure
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    Figure 20 (p. 42)figure
    Figure 21 (p. 44)figure
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