Vibration and stability of two-tubes in cross-flow

Journal Article · Thu May 01 04:00:00 EDT 1997 · Journal of Pressure Vessel Technology

DOI:https://doi.org/10.1115/1.2842275· OSTI ID:477451

Zhu, S; Chen, S S; Cai, Y ^[1]

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1. Argonne National Lab., IL (United States). Energy Technology Div.

Two tubes in tandem and normal to flow were studied on the basis of the unsteady-flow theory. Motion-dependent fluid forces were measured in a water channel, and the pitch-to-diameter ratio was 1.35. From the measured fluid forces, fluid damping and stiffness were calculated as a function of reduced flow velocity and several Reynolds numbers. Once the fluid-damping and fluid-stiffness coefficients are known, coupled vibration and stability of the two tubes in cross-flow can be predicted.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 477451
• Journal Information: Journal of Pressure Vessel Technology, Journal Name: Journal of Pressure Vessel Technology Journal Issue: 2 Vol. 119; ISSN JPVTAS; ISSN 0094-9930
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CROSSFLOW SYSTEMS
EXPERIMENTAL DATA
FLUID-STRUCTURE INTERACTIONS
MECHANICAL VIBRATIONS
TUBES