A comprehensive review of modelling techniques for the flow-induced vibration (FIV) bluff bodies is presented. This phenomenology involves bidirectional fluid–structure interaction (FSI) coupled with non-linear dynamics. In addition to experimental investigations this phenomenon in wind tunnels and water channels, a number methodologies have become important study various aspects FIV response b...

A complete study of the optical and magnetic properties three new {V6-type} polyoxidometalates (NH3CH2CH2CH2NH3)4{V6B20O50H8}·4H2O 1, K2(NH3CH2CH2NH3)2.5(NH3CH2CH2NH2){V6B20O50H8}·2H2O 2, K2(NH3CH2CH2CH2NH3)2(H3O)2{V6B20O50H8}·8H2O 3 is presented. Using TD-DFT calculations, assignment experimental UV–Visible spectra was established with four absorption bands: a higher in energy assigned to meta...

analyzing the vortex-induced vibration of a slender marine structure withlength to diameter ratio up to 200 is the objective of this study. this slender is free to move in both in-line and cross flow directions and immersed completely in water. three different types of shear currents pass on it and cause to vibrate slender in different forms. nowadays, these vibrations are very important for de...

Vortex-Induced Vibrations (VIV) are an important source of fatigue damage for risers in the Oil and Gas industry. Results from recent VIV experiments by Vandiver et al. [1] indicate significant dynamic strain energy at not only the Strouhal frequency, but also its harmonics. In certain regions of the pipe, these higher harmonics accounted for more that half of the measured RMS strain and increa...

The goal of this study was to provide a measurement of the true internal diameter (ID) of various surgical heart valves (SHV) to facilitate the valve-in-valve (VIV) procedure. During a VIV procedure, it is important to choose the right of the transcatheter heart valve (THV). Most users use the stent ID of an SHV to select the appropriate THV size. Echocardiography and computed tomography measur...

Vortex-induced vibration (VIV) is a highly nonlinear fluid-structure interaction (FSI) phenomenon, and its accurate prediction remains challenging. In this study, we developed high-order partitioned FSI framework towards simulation of the VIV phenomenon. The focus on simulating two-way coupled between flexibly mounted rigid body surrounding fluids. framework, computational fluid dynamics method...

The present work numerically investigates vortex-induced vibrations (VIV) of a two-dimensional circular cylinder with an axisymmetric slit at Reynolds number 500. study examines the effects shape (i.e., converging, diverging, and parallel slits), effect slit-area ratios, slit-width, its angle freestream velocity on aerodynamic forces, vibration response, associated flow characteristics. results...

Abstract In order to demonstrate the relevance of considering Vortex-Induced Vibrations (VIV) in structural design marine structures, this study proposes an alternative experimental and analytical approach wet conditions measure fluid–structure interaction near field quantify viscous damping with measured 3D hydrodynamic accelerations. It was demonstrated that VIV caused incremented 5.00% coeff...

The transverse flow-induced vibration (FIV) of an elastically-supported cylinder-plate assembly (viz., a rigid splitter-plate attached to the downstream side circular cylinder) with low mass ratio 10 and zero structural damping is investigated using numerical simulations at Reynolds number 100. oscillations characteristics flow around structure are analyzed in terms fluid forces as function pla...