Journal ArticleDOI
The post-hopf-bifurcation response of a loosely supported cylinder in an array subjected to cross-flow. Part I: Experimental results
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In this article, the dynamic response of a loosely supported cylinder, unstable in its first TSP-inactive mode (i.e., when no support is provided by the Tube Support Plate), is investigated experimentally.About:
This article is published in Journal of Fluids and Structures.The article was published on 1994-01-01. It has received 17 citations till now. The article focuses on the topics: Intermittency & Hopf bifurcation.read more
Citations
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Vortex-induced vibrations of a rigid cylinder on elastic supports with end-stops, Part 1: Experimental results
Sylvain Bourdier,John R. Chaplin +1 more
TL;DR: In this article, the effect of restricting the amplitude of the vortex-induced vibrations of a spring-mounted rigid cylinder by means of stiff mechanical end-stops was investigated, and it was shown that limiting the amplitude strongly affects the dynamics of the cylinder, particularly when the offset is small.
Journal ArticleDOI
Flow Over Submerged Energy Storage Balloons in Closely and Widely Spaced Floral Configurations
TL;DR: In this paper, a simulation of water flow past the accumulator unit of an underwater compressed air energy storage plant was studied numerically using URANS k-ω and LES Dyna-SM turbulence models of ANSYS-Fluent CFD software.
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On the Virtual Nonexistence of Multiple Instability Regions for Some Heat-Exchanger Arrays in Crossflow
TL;DR: In this paper, it was shown that the stability of an array strongly depends on geometric asymmetries, whereas for a perfectly symmetric geometry the system may have several sub-ultimate instability regions, an asymmetry of as little as 0.02D may quench them and leave only the ultimate instability region intact.
Journal ArticleDOI
Nonlinear dynamics of a cantilevered tube with clearance constraint subject to two-phase cross-flow
TL;DR: In this article, the effects of two-phase cross-flow and nonlinear clearance constraint on the dynamic characteristics of steam generator tube bundles are investigated. But the main objective of this paper is to determine the effects on the dynamics of the cantilevered tube.
Dynamics of tubes in fluid with tube-baffle interaction
TL;DR: Test results show that, for relatively large clearances, tubes may possess TSP-inactive modes in which the tubes rattle inside some of the tube-support-plate holes, and that the natural frequencies of T SP-in active modes are lower than those of Tsp-active modes, inWhich the support plates provide knife-edge type support.
References
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Journal ArticleDOI
Intermittent transition to turbulence in dissipative dynamical systems
Yves Pomeau,Paul Manneville +1 more
TL;DR: In this article, simple dissipative dynamical systems exhibiting a transition from a stable periodic behavior to a chaotic one were studied, where the inverse coherence time grows continuously from zero to zero due to the random occurrence of widely separated bursts in the time record.
Journal ArticleDOI
A periodically forced piecewise linear oscillator
Steven W. Shaw,Philip Holmes +1 more
TL;DR: In this article, a single-degree of freedom non-linear oscillator is considered and the nonlinearity is in the restoring force and is piecewise linear with a single change in slope.
Journal ArticleDOI
Chaotic vibrations of a beam with non-linear boundary conditions
Francis C. Moon,Steven W. Shaw +1 more
TL;DR: Forced vibrations of an elastic beam with non-linear boundary conditions are shown to exhibit chaotic behavior of the strange attractor type for a sinusoidal input force as mentioned in this paper, where the beam is clamped at one end, and the other end is pinned for the tip displacement less than some fixed value and is free for displacements greater than this value.
Journal ArticleDOI
Instability Mechanisms and Stability Criteria of a Group of Circular Cylinders Subjected to Cross-Flow. Part I: Theory
Journal ArticleDOI
Instability Mechanisms and Stability Criteria of a Group of Circular Cylinders Subjected to Cross-Flow—Part 2: Numerical Results and Discussions
TL;DR: In this article, the fluid-force coefficients for a row of cylinders and a square array are determined from available experimental data and critical flow velocities are calculated as a function of system parameters.
Related Papers (5)
The Post-Hopf-Bifurcation Response of a Loosely Supported Cylinder in an Array Subjected to Cross-Flow. Part II: Theoretical Model and Comparison with Experiments
Cross-flow-induced chaotic vibrations of heat-exchanger tubes impacting on loose supports
M.P. Païdoussis,G.X. Li +1 more