Flexible cylinder flow-induced vibration
WebOct 1, 2024 · We study Vortex-Induced Vibration (VIV) of an elastically mounted cylinder placed in uniform flow using numerical simulations based on Immersed Boundary Method and theoretical analysis. We characterize the effect of bistability in elastic potential on energy harvesting from fluid flow, in which the energy generator is modeled as structural …
Flexible cylinder flow-induced vibration
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WebOct 25, 2024 · Flexible structures placed within an oncoming flow exhibit far more complex vortex-induced dynamics than flexibly mounted rigid cylinders, because they involve the … WebApr 7, 2024 · Flow induced vibration caused by vortex shedding, known as vortex induced vibrations (VIV), is typically unwanted and hazardous to mechanical structures (Lu et al., 2024 19.Lu, Y., Luo, Q., Liao, Y., and Xu, W., “ Vortex-induced vibration fatigue damage prediction method for flexible cylinders based on RBF neural network,” Ocean …
WebNov 15, 2024 · The idea of describing the flow-induced vibration as a mode dominance factor and a traveling wave index was first discussed in Ma, 2024, Ma et al., 2024a, Ma et al., 2024b. Fig. 1 shows a tensioned elastic cylinder under a linearly sheared current profile U(z) distributed along axis z, which is free to vibrate in both the in-line (IL) and cross … WebJun 1, 2024 · The flow-induced vibrations of the combined structures are firstly tested with 2D fluid–structure interaction (FSI) simulations. In the 2D cases, the flexibly supported …
WebNov 28, 2013 · Vortex-induced vibration (VIV) in oscillatory flow is experimentally investigated in the ocean basin. The test flexible cylinder was forced to harmonically oscillate in various combinations of amplitude and period with Keulegan-Carpenter ( KC ) number between 26 and 178 in three different maximum reduced velocities, U R max = 4 … WebMar 7, 2024 · Flexible cylinders, such as marine risers, often experience sustained vortex-induced vibrations (VIVs). Installing helical strakes on a riser is the most widely used technique to mitigate VIVs. This study was inspired by the giant Saguaro Cacti which can withstand strong wind with a shallow root system. In this study, numerical simulations of …
WebJan 5, 2024 · Flow-induced vibration (FIV) of four separately mounted cantilever cylinders are experimentally investigated in a water flume. The four cylinders with top ends screwed vertically into a turntable platform are subjected to uniform flows with Reynolds number ranging from 3840 to 16520. A non-intrusive measurement with high-speed cameras is …
WebJun 2, 2024 · Flow-induced vibration (FIV) of a flexible cylinder with an upstream wake interference at a subcritical Reynolds number is numerically investigated in this study. … dow 40 psi insulationWebFeb 13, 2024 · The cross-flow over a surface-mounted elastic plate and its vibratory response are studied as a fundamental two-dimensional configuration to gain physical insight into the interaction of viscous flow with flexible structures. The governing equations are numerically solved on a deforming mesh using an arbitrary Lagrangian-Eulerian finite … civil war prisoner of war medalWebJan 25, 2024 · ABSTRACT. In this paper, we conducted a selective review on the recent progress in physics insight and modeling of flexible cylinder flow-induced vibrations (FIVs). FIVs of circular cylinders include vortex-induced vibrations (VIVs) and wake … In this paper, we conducted a selective review on the recent progress in physics … civil war prisons in tennesseeWebSep 28, 2024 · Vortex-induced vibration of a curved flexible cylinder placed in the test section of a recirculating water tunnel and fixed at both ends is studied experimentally. … civil war prison conditionsWebAs one of the fundamental problems in fluid mechanics, the flow-induced vibration of a flexible cylinder helps shed light on various complex fluid–structure interaction phenomena, such as the ... dow 40 psi foam boardWebOct 9, 2024 · The flow past a 2D circular cylinder with control rods is numerically simulated in the present paper. The suppression effects of the control rods on the vortex-induced vibration (VIV) characteristics of the cylinder are investigated using the overlapping grid method and user defined function. By setting the cylinder’s vibration amplitude and … civil war prisoners of war recordsWebApr 1, 2024 · Cylindrical cyclones play an important role in oil–water separation and sewage treatment in the petroleum industry. Here, we describe the characteristics of vibration induced by a two-phase rotational flow in a cylindrical cyclone. The cyclone operating parameters together with a dimensional analysis and multiphase flow numerical … civil war prison camp