Experiment on fluidelastic instability of loosely supported tube arrays in crossflow

Technical Report · Wed Jun 01 04:00:00 EDT 1994

DOI:https://doi.org/10.2172/10154505· OSTI ID:10154505

Chen, S S; Zhu, S; Cai, Y

A tube array supported by baffle plates in crossflow may be subjected to fluidelastic instability in the tube-support-plate-inactive mode. An experimental study is presented to characterize the tube motion. Three series of tests were performed to measure tube displacements as a function of flow velocity for different clearances. The motion was examined by root-mean-square values of tube displacements, power spectral densities, phase planes, Poincare maps, and Lyapunov exponents. The experimental data agree reasonably well with the analytical model, based on the unsteady flow theory.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10154505
• Report Number(s): ANL/ET/CP--81075; CONF-940613--19; ON: DE94012463
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400
BOILERS
CONDENSERS
DYNAMIC LOADS
EXPERIMENTAL DATA
FLOW RATE
FLUID FLOW
HEAT EXCHANGERS
HEAT TRANSFER AND FLUID FLOW
OSCILLATIONS
STEAM GENERATORS
SUPPORTS
TUBES