Two-phase flow in power plant steam generators can induce tube vibrations, which may cause fretting-wear and even fatigue cracks. It is therefore important to understand the relevant two-phase flow-induced vibration mechanisms. Fluidelastic instabilities in cross-flow are known to cause the most severe vibration response in the U-bend region of steam generators. This paper presents test results of the vibration of a normal triangular tube bundle subjected to air-water cross-flow. The test section presents 31 flexible tubes. The pitch-to-diameter ratio of the bundle is 1.5, and the tube diameter is 38 mm. Tubes were flexible in the lift direction. Seven tubes were instrumented with strain gauges to measure their displacements. A broad range of void fractions (from 10% to 90%) and fluid velocities (up to 13 m/s) were tested. Fluidelastic instabilities were observed for void fractions between 10% and 60%. Periodic fluid forces were also observed. The results are compared with those obtained with the rotated triangular tube bundle, showing that the normal triangular configuration is more stable than the rotated triangular configuration.
Skip Nav Destination
ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
August 1–5, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5451-8
PROCEEDINGS PAPER
Fluidelastic Instability and Periodic Fluid Forces in a Normal Triangular Tube Bundle Subjected to Air-Water Flow Available to Purchase
G. Ricciardi,
G. Ricciardi
Ecole Polytechnique, Montre´al, QC, Canada
Search for other works by this author on:
M. J. Pettigrew,
M. J. Pettigrew
Ecole Polytechnique, Montre´al, QC, Canada
Search for other works by this author on:
N. W. Mureithi
N. W. Mureithi
Ecole Polytechnique, Montre´al, QC, Canada
Search for other works by this author on:
G. Ricciardi
Ecole Polytechnique, Montre´al, QC, Canada
M. J. Pettigrew
Ecole Polytechnique, Montre´al, QC, Canada
N. W. Mureithi
Ecole Polytechnique, Montre´al, QC, Canada
Paper No:
FEDSM-ICNMM2010-30143, pp. 451-458; 8 pages
Published Online:
March 1, 2011
Citation
Ricciardi, G, Pettigrew, MJ, & Mureithi, NW. "Fluidelastic Instability and Periodic Fluid Forces in a Normal Triangular Tube Bundle Subjected to Air-Water Flow." Proceedings of the ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise: Volume 3, Parts A and B. Montreal, Quebec, Canada. August 1–5, 2010. pp. 451-458. ASME. https://doi.org/10.1115/FEDSM-ICNMM2010-30143
Download citation file:
20
Views
Related Articles
Mechanics of Pipes Conveying Fluids—Part II: Applications and Fluidelastic Problems
J. Pressure Vessel Technol (April,2011)
Experimental and Numerical Characterization of Flow-Induced Vibration of Multispan U-tubes
J. Pressure Vessel Technol (February,2012)
Prediction of Flow-Induced Vibrations in Tubular Heat Exchangers—Part II: Experimental Investigation
J. Pressure Vessel Technol (February,2009)
Related Chapters
Random Turbulence Excitation in Single-Phase Flow
Flow-Induced Vibration Handbook for Nuclear and Process Equipment
Hydrodynamic Mass, Natural Frequencies and Mode Shapes
Flow-Induced Vibration Handbook for Nuclear and Process Equipment
Fluidelastic Instability of Tube Bundles in Single-Phase Flow
Flow-Induced Vibration Handbook for Nuclear and Process Equipment