Showing papers in "Journal of Fluids and Structures in 2002"

TL;DR: In this article, a physically consistent method is used for the reconstruction of velocity fluxes which arise from discrete equations for the mass and momentum balances, and a comparison of phase-averaged velocity vectors between measurements and predictions is presented.

TL;DR: In this article, the effect of changing the gap between the cylinder and the wall, from G = 0 (cylinder touching the wall) to G / D = 2, was investigated and it was shown that the flow may be characterized by four distinct regions.

TL;DR: In this article, the relationship between flutter speed, rigidity, mass ratio and tension were clarified from a large data set, and the flutter boundaries were obtained in the form of dimensionless flutter speeds and mass ratio for the case of sheet paper, and dimensionless speed, mass ratios, and tension parameters for web paper.

TL;DR: In this article, two different methods of analysis were developed in order to clarify the phenomenon of paper flutter using a Navier-Stokes code (N-S) simulation.

TL;DR: In this paper, a two-layer k-e model with a modified k-production term was used to investigate aerodynamic properties of rectangular cylinders of infinite length and various breadth-to-depth ratios.

TL;DR: In this article, a 3D viscous aeroelastic solver for nonlinear panel flutter is developed, where a well-validated full Navier-Stokes code is coupled with a finite difference procedure for the von Karman plate equations.

TL;DR: In this article, high-image-density particle image velocimetry is employed to characterize the instantaneous and averaged patterns of velocity, vorticity and Reynolds stress due to flow past two cylinders in tandem.

TL;DR: In this paper, the dynamics of a cantilevered cylinder in axial flow are explored, by means of the equations derived in Part 2 of this three-part study, and using as numerical tools the finite difference method and AUTO in order to solve the discretized equations.

TL;DR: In this paper, a nonlinear equation of motion is derived for the dynamics of a slender cantilevered cylinder in axial flow, generally terminated by an ogival free end.

TL;DR: In this article, the relationship between the local and global bending motions of fluid-conveying pipes on an elastic foundation is investigated, and the global criterion for instability coincides with local neutrality, whereby a local harmonic forcing only generates neutral waves.

TL;DR: In this paper, the suppression of fluid forces acting on two square prisms in a tandem arrangement in which a flow approaching the upstream prism was controlled by a thin flat plate was examined, with variation in spacing between the plate and the prism.

TL;DR: In this article, a linear analysis of the vibratory behavior of initially tensioned cylindrical shells conveying a compressible inviscid fluid is presented based on the three-dimensional nonlinear theory of elasticity and the Eulerian equations.

TL;DR: In this article, a computer program DIVA has been developed to take into account a flowing fluid, a mean radial pressure and initial pre-stress in circular cylindrical shells.

TL;DR: In this article, the authors examined the response of suspended elastic cables driven by a steady current to vortex-induced vibrations (VIV) by considering two principal coupling mechanisms: (i) cable structural nonlinearities and (ii) coupled fluid lift and drag.

TL;DR: In this article, the authors investigated the aerodynamic behavior of a thin rectangular wing with a controllable trailing edge flap, and the problem of maximizing closed-loop modal damping with constraints on actuator performance was solved for a sequence of flow speeds.

TL;DR: In this article, the authors used a dynamic model which couples the hydraulics of a piping system with the structural motion of an air-operated, plug-type automatic control valve.

TL;DR: In this article, the free vibration of a flexible thin plate placed into a circular hole and elastically connected to the rigid bottom slab of a circular cylindrical container filled with fluid having a free surface is studied.

TL;DR: In this paper, the first compression wave generated in a tunnel when a high-speed train enters it has been investigated using a reduced-scale test method, using low-sound-speed gas mixtures.

TL;DR: In this paper, an experimental and numerical study of the aeroelastic behavior of elongated rectangular and square cylinders is presented, where a simple modelling of galloping is proposed to better fit the experiments.

TL;DR: In this paper, a tube/support interaction model was implemented in an in-house finite element program and validated against three published examples to determine the effect of various tube and support parameters on the vibratory characteristics of the systems.

TL;DR: In this article, a travelling-wave analysis was done based on incompressible potential-flow theory; the critical flow speed, wave speed, wavelength, and flutter frequency were predicted.

TL;DR: In this article, a 35 MW turbo-compressor in a natural gas storage station was investigated to investigate the effect of vortex shedding from struts in a downstream radial flow chamber.

TL;DR: In this paper, the critical velocities of the tube bundle vibration are calculated, and it is found that the critical velocity is strongly dependent on the fluid-dynamic force characteristics, as they vary with the reduced velocity.

TL;DR: In this paper, a feedback model was proposed to explain the energy supply mechanism to self-induced sloshing, which was composed of a jet deflection process caused by a lateral pressure gradient and a pressure imbalance generation process due to jet movement.

TL;DR: In this paper, Wang et al. used a hybrid PTV velocity field measurement technique to investigate the flow field behind porous fences of geometric porosity e=38·5% with various bottom gaps.

TL;DR: In this paper, an original theoretical model for vibration onset of the vocal folds in the air-flow coming from the human subglottal tract is designed, which allows studying the influence of the physical properties of vocal folds (e.g., geometrical shape, mass, viscosity) on their vibration characteristics (such as the natural frequencies, mode shapes of vibration and thresholds of instability).

TL;DR: In this article, the response of two water-filled circular cylindrical shells made of steel to a harmonic excitation has been experimentally investigated in the neighbourhood of the fundamental mode.

TL;DR: In this paper, the effect of steady viscous forces on vibrations of shells with internal and annular flow has been considered by using the time-mean Navier-Stokes equations, which has been validated by comparison with available results for shells with uniform constraints and added lumped masses.

TL;DR: In this article, the authors present a time domain simulator which simulates the dynamic interaction of two adjacent cylindrical risers moving relative to each other in an ambient steady flow.

TL;DR: In this paper, the full unsteady three-dimensional Navier-Stokes equations were solved numerically with the view of exploring the rather complex vortex shedding phenomena caused by the variation of the natural shedding frequency along the span of the cylinder.