Showing papers in "Journal of Fluids and Structures in 2015"

TL;DR: A broad overview of the literature pertaining to the dynamic analysis of fluid-filled pipe systems considering fluid-structure interaction (FSI) is provided in this article, where various types of models and simulation algorithms of different levels of sophistication are compared and their application range discussed.

TL;DR: The main purpose is to investigate which physical effects are dominant for mooring loads, and in this respect, to investigate the validity of different rational hydrodynamic load models.

TL;DR: The mean wake of a three-bladed horizontal axis turbine operating at maximum power coefficient has been investigated experimentally in a wide flume with width 11 times the depth, providing minimal restriction to transverse wake development and behaviour of large-scale horizontal turbulence structures.

TL;DR: In this article, an immersed boundary-lattice Boltzmann flux solver (IB-LBFS) was proposed for simulation of two-dimensional fluid-structure interaction (FSI) problems.

TL;DR: In this paper, the effect of small control cylinders on vortex-induced vibration suppression was investigated using computational fluid dynamics (CFD) models coupled with a fluid-structure interaction (FSI) computational method.

TL;DR: In this article, the authors simulated the flapping motions of an inverted flag in a uniform flow using the immersed boundary method and used the strain energy of the inverted flag as an indicator of the energy harvesting system efficiency.

TL;DR: In this article, an experimental investigation was performed to characterize the vortex induced vibration (VIV) of a flexible cable in an oncoming shear flow, and the results showed that the cable model behaved in single-mode and multi-mode VIVs.

TL;DR: In this paper, the galloping response of a circular cylinder fitted with three different splitter plates and free to oscillate transverse to a free stream has been investigated considering variations in plate length and plate porosity.

TL;DR: In this paper, two steady states, steady state I and steady state II, are identified based on the physical characteristics of the wake and the drag force on the body, and the curves of marginal stability are presented, followed by a comparison of numerical simulations to their experimentally obtained counterparts.

TL;DR: The conclusions drawn are useful not only to SPH or LS-FVM users but also for other numerical models, for which accurate results on benchmark test-cases are provided.

TL;DR: In this paper, experiments on the flow around stationary circular cylinders with very low aspect ratio piercing the water free surface were carried out in a recirculating water channel, where eight different aspect ratios were tested, namely L / D = 0.1, 0.2, 0.3, 0., 0.5, 0, 1.0 and 2.0; no endplates were employed.

TL;DR: In this paper, the surface gravity wave interaction with submerged horizontal flexible porous plate under the assumption of small amplitude water wave theory and structural response was studied by analyzing the complex dispersion relation using contour plots.

TL;DR: In this article, the development of the dynamic stall of a full straight blade vertical axis wind turbine (SB-VAWT) using computational fluid dynamic modeling for solving the 2D Navier-Stokes equations is investigated.

TL;DR: In this paper, the authors presented a dynamic analysis of a two-raft wave energy conversion device based on the three-dimensional wave radiation-diffraction method, which consists of two hinged cylindrical rafts of elliptical cross section and a power take-off system at the joint.

TL;DR: In this paper, the effects of wing morphing on unsteady aerodynamics, deformable flapping plates are numerically studied in a low-Reynolds-number flow using an in-house immersed-boundary-method-based direct numerical simulation (DNS) solver.

TL;DR: In this article, a nonlinear model for the flow of an incompressible and inviscid fluid given in Part I, the wave-induced loads on the submerged, fixed (and rigid) plate are calculated, and results are compared with the available laboratory data, and with linear solutions of the problem.

TL;DR: In this paper, a two-dimensional Unsteady Reynolds-Average Navier-Stokes equations with the Spalart-Allmaras turbulence model is used to simulate the flow induced motions of multiple circular cylinders with passive turbulence control (PTC) in steady uniform flow.

TL;DR: In this paper, the results from a combined wind tunnel and full-scale study of the wind effects on a super-tall building with a height of 420 meters in Hong Kong were analyzed.

TL;DR: In this paper, a number of researchers were invited to predict the performances and the wake development behind two model wind turbines that have been extensively tested at the Department of Energy and Process Engineering, NTNU.

TL;DR: In this article, two side-by-side elastically supported circular cylinders in a uniform flow with the Reynolds number of 100 are numerically investigated by using the immersed boundary method, where the cylinders are constrained to oscillate in the cross-flow direction with a center-to-center spacing ratio T / D ranging from 2 to 5.

TL;DR: In this paper, a new experimental technique is presented to allow laboratory-scale observation of underwater blast loading on circular plates, including dynamic deformation and failure of the plates as well as the sequence of cavitation events in water.

TL;DR: In this article, a two-wavenumber extension of the single-wavenumber Sears function is introduced to deal with the three dimensional effects of the turbulence induced by a thin plate section or aerofoil strip in a turbulent wind field.

TL;DR: In this paper, a free-vibration experiment was conducted to examine flow-induced vibration (FIV) characteristics of two identical circular cylinders in side-by-side arrangements at spacing ratio T = T/D = 0.1-3.2, covering all possible flow regimes, where T is the gap spacing between the cylinders and D is the cylinder diameter.

TL;DR: In this paper, the propagation of nonlinear gravity waves over a thin horizontal plate submerged in water of shallow depth is studied, and an unsteady solution of the problem is obtained by use of the theory of directed fluid-sheets for the two-dimensional motion of an incompressible and inviscid fluid.

TL;DR: In this paper, the effect of oscillator mass ratio on in-line and transverse free vibrations of a rigid square cylinder at zero incidence in two-dimensions was studied, and it was found that the occurrence of galloping is a function of mass ratio.

TL;DR: In this article, a Tuned Liquid Dampers (TLD) is proposed to mitigate the vibratory response of slender buildings by increasing the size of the perforated screen.

TL;DR: In this article, a conceptual analysis and a computational model for how the unsteady "buffeting" phenomenon develops in transonic, low incidence flow around a supercritical aerofoil, the OAT15A, at Reynolds number of 3.3 million.

TL;DR: In this paper, the authors compare the background hypotheses of different galloping models, and the results they produce for an application to ice-accreted bridge cables, the analysis of the stability of which is the second aim of the paper.

TL;DR: In this paper, a model for the analysis of two-dimensional hydroelastic slamming of flexible wedges entering the water surface in free fall with arbitrary boundary conditions is proposed, where Euler-Bernoulli beam theory is used to model the wedge kinematics and Wagner theory is adopted to study the flow physics.

TL;DR: In this article, the authors present a numerical study on vortex-induced vibration (VIV) of a freely vibrating two degree-of-freedom circular cylinder in close proximity to a stationary plane wall.