Fluid damping and fluid stiffness of tube arrays in crossflow

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Description

Motion-dependent fluid forces acting on a tube array were measured as a function of excitation frequency, excitation amplitude, and flow velocity. Fluid-damping and fluid-stiffness coefficients were obtained from measured motion-dependent fluid forces as a function of reduced flow velocity and excitation amplitude. The water channel and test setup provide a sound facility for obtaining key coefficients for fluidelastic instability of tube arrays in crossflow. Once the motion-dependent fluid-force coefficients have been measured, a reliable design guideline, based on the unsteady flow theory, can be developed for fluidelastic instability of tube arrays in crossflow.

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47 p.

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Chen, S. S.; Zhu, S. & Jendrzejczyk, J. A. June 1, 1994.

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Description

Motion-dependent fluid forces acting on a tube array were measured as a function of excitation frequency, excitation amplitude, and flow velocity. Fluid-damping and fluid-stiffness coefficients were obtained from measured motion-dependent fluid forces as a function of reduced flow velocity and excitation amplitude. The water channel and test setup provide a sound facility for obtaining key coefficients for fluidelastic instability of tube arrays in crossflow. Once the motion-dependent fluid-force coefficients have been measured, a reliable design guideline, based on the unsteady flow theory, can be developed for fluidelastic instability of tube arrays in crossflow.

Physical Description

47 p.

Notes

OSTI as DE94012452; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov

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  • 1994 American Society of Mechanical Engineers (ASME) pressure vessels and piping conference,Minneapolis, MN (United States),19-23 Jun 1994

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  • Other: DE94012452
  • Report No.: ANL/ET/CP--81074
  • Report No.: CONF-940613--11
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10153931
  • Archival Resource Key: ark:/67531/metadc1317534

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • June 1, 1994

Added to The UNT Digital Library

  • Nov. 3, 2018, 11:47 a.m.

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  • Nov. 7, 2018, 1:12 p.m.

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Chen, S. S.; Zhu, S. & Jendrzejczyk, J. A. Fluid damping and fluid stiffness of tube arrays in crossflow, article, June 1, 1994; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1317534/: accessed April 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.