Two-phase cross flow exists in many shell-and-tube heat exchangers. Flow-induced vibration excitation forces can cause tube motion that will result in long-term fretting-wear or fatigue. Detailed vibration excitation force measurements in tube bundles subjected to two-phase cross flow are required to understand the underlying vibration excitation mechanisms. An experimental program was undertaken with a rotated-triangular array of cylinders subjected to air/water flow to simulate two-phase mixtures over a broad range of void fraction and mass fluxes. Both the dynamic lift and drag forces were measured with strain gage instrumented cylinders. The experiments revealed somewhat unexpected but significant quasi-periodic forces in both the drag and lift directions. The periodic forces appeared well correlated along the cylinder with the drag force somewhat better correlated than the lift forces. The periodic forces are also dependent on the position of the cylinder within the bundle.
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e-mail: michel.pettigrew@polymtl.ca
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February 2007
Research Papers
Vibration Excitation Force Measurements in a Rotated Triangular Tube Bundle Subjected to Two-Phase Cross Flow
C. Zhang,
C. Zhang
BWC/AECL/NSERC Chair of Fluid-Structure Interaction, Department of Mechanical Engineering,
École Polytechnique
, Montréal, QC, Canada, H3C 3A7
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M. J. Pettigrew,
M. J. Pettigrew
Fellow ASME
BWC/AECL/NSERC Chair of Fluid-Structure Interaction, Department of Mechanical Engineering,
e-mail: michel.pettigrew@polymtl.ca
École Polytechnique
, Montréal, QC, Canada, H3C 3A7
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N. W. Mureithi
N. W. Mureithi
BWC/AECL/NSERC Chair of Fluid-Structure Interaction, Department of Mechanical Engineering,
École Polytechnique
, Montréal, QC, Canada, H3C 3A7
Search for other works by this author on:
C. Zhang
BWC/AECL/NSERC Chair of Fluid-Structure Interaction, Department of Mechanical Engineering,
École Polytechnique
, Montréal, QC, Canada, H3C 3A7
M. J. Pettigrew
Fellow ASME
BWC/AECL/NSERC Chair of Fluid-Structure Interaction, Department of Mechanical Engineering,
École Polytechnique
, Montréal, QC, Canada, H3C 3A7e-mail: michel.pettigrew@polymtl.ca
N. W. Mureithi
BWC/AECL/NSERC Chair of Fluid-Structure Interaction, Department of Mechanical Engineering,
École Polytechnique
, Montréal, QC, Canada, H3C 3A7J. Pressure Vessel Technol. Feb 2007, 129(1): 21-27 (7 pages)
Published Online: March 31, 2006
Article history
Received:
September 22, 2005
Revised:
March 31, 2006
Citation
Zhang, C., Pettigrew, M. J., and Mureithi, N. W. (March 31, 2006). "Vibration Excitation Force Measurements in a Rotated Triangular Tube Bundle Subjected to Two-Phase Cross Flow." ASME. J. Pressure Vessel Technol. February 2007; 129(1): 21–27. https://doi.org/10.1115/1.2388996
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