Motion-Dependent Fluid Force Coefficients for Tube Arrays in Crossflow

Author:

Chen S. S.1,Srikantiah G. S.2

Affiliation:

1. Argonne National Laboratory, Energy Technology Division, Argonne, IL 60439

2. Electric Power Research Institute, Palo Alto, CA 94303

Abstract

Fluidelastic instability of tube arrays in crossflow is interesting academically and important in steam generators and heat exchangers. The key elements necessary to accurately predict fluidelastic instability of tube arrays in crossflow are motion-dependent fluid force coefficients. This paper presents several series of experiments that measure motion-dependent fluid forces for various tube arrays. Fluid damping and stiffness coefficients based on the unsteady flow theory were obtained as a function of reduced flow velocity, excitation amplitude, and Reynolds number, and the characteristics of motion-dependent fluid force coefficients were applied to provide some additional insights into fluidelastic instability.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Reference29 articles.

1. Blevins, R. D., 1976, Flow-Induced Vibration, John Wiley & Sons, New York, NY.

2. Paidoussis, M. P., 1980, “Flow-Induced Vibration in Nuclear Reactors and Heat Exchangers,” Practical Experiences with Flow-Induced Vibration, E. Naudascher and D. Rockwell, eds., Springer Verlag, pp. 1–81.

3. Chen, S. S., 1987, Flow-Induced Vibration of Circular Cylindrical Structures, Hemisphere Publishing Corp., New York, NY.

4. Weaver, D. S., and Fitzpatrick, J. A., 1988, “A Review of Cross-Flow Induced Vibrations in Heat Exchanger Tube Arrays,” J. Fluids Struct., 2, pp. 73–93.

5. Price, S. J., 1993, “Theoretical Models of Fluidelastic for Cylinder Arrays Subject to Cross-Flow,” Technology for the ’90s, M. K. Au-Yang, ed., ASME, New York, Part III, Chap. 5, pp. 711–743.

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