Flow-induced vibration of piggyback cylinders
WebThe flow-induced vibrations of a circular cylinder, free to oscillate in the cross-flow direction and subjected to a forced rotation about its axis, are analysed by means of two- … WebJun 1, 2014 · For free vibrations of two side-by-side cylinders in a cross-flow, the system modal damping ratio and the natural frequency were found to be dependent on the spacing ratio [15]. Assi et al. [16] investigated the mechanism of wake-induced vibrations (WIV) of a pair of cylinders in a tandem arrangement. It was indicated that, different from the ...
Flow-induced vibration of piggyback cylinders
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WebT1 - Towing tank experiment on flow-induced vibration of piggyback circular cylinders. AU - Ma, Bowen. AU - Srinil, Narakorn. AU - Zanganeh, Hossein. AU - Day, A H. PY - 2014/7. Y1 - 2014/7. N2 - This paper discussed towing tank experiment on flow-induced vibration of piggyback circular cylinders. WebJan 31, 2014 · Abstract. The flow-induced vibrations of a circular cylinder, free to oscillate in the cross-flow direction and subjected to a forced rotation about its axis, are analysed …
WebAug 18, 2024 · Till now, little information is available on the flow-induced vibration (FIV) of multiple flexible cylinders with unequal diameters. Some FIV characteristics of unequal-diameter cylinders can be predicted based on the knowledge of equal-diameter cylinders, while there are still other features remaining unrevealed. In this paper, the FIV … Web开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆
WebNov 1, 1986 · AbstractThe flow field around a pair of rigid circular cylinders is very complex and has been studied extensively. When either one or both cylinders vibrate, the flow … 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 …
WebApr 11, 2024 · It is very important to suppress vortex-induced vibration of the flow field in a valve by optimizing the valve trim structure. In this paper, a multistage pressure-reducing valve is proposed, and the flow fields in the valve with the lightweight, flat bottom, circular truncated cone and cylinder valve plug are simulated using the ANSYS Workbench.
WebApr 26, 2006 · SOME EXPERIMENTS ON FLOW-INDUCED VIBRATION OF A CIRCULAR CYLINDER WITH SURFACE ROUGHNESS. Journal of Fluids and Structures, Vol. 13, Issue. 7-8, p. 853. CrossRef; Google Scholar; BRIKA, D. and LANEVILLE, A. 1999. THE FLOW INTERACTION BETWEEN A STATIONARY CYLINDER AND A DOWNSTREAM … cs.chinalife.com.hk formWebVortex-induced vibrations of piggyback pipelines near the horizontal plane wall in the upper transition regime. ... The flow structures around the cylinders are investigated to explain the variations in observed structural responses. Depending on the angular position (α) of the small cylinder, the lock-in regime is narrower (α = 0°) or ... dyson airwrap for thick coarse hairWebApr 13, 2024 · Bluff bodies are prone to vortex-induced vibration (VIV), a phenomenon that causes these structures to obey a cyclic motion, both in the direction of the incoming flow and (more intensely) in the transverse direction (Williamson and Govardhan, 2004 55.Williamson, C. H. K. and Govardhan, R., “ Vortex-induced vibrations,” Annu. Rev. … cs ch interest \\u0026 dividend focus growth chfcs ch interest \u0026 dividend focus growth chfWebApr 12, 2024 · Based on the two-dimensional hydrodynamic model of the finite volume method and structured multigrid, the flow characteristics around a square cylinder with boundary constraint are analysed. The gap ratio G/D (G is the distance from the cylinder to the channel boundary, and D is the side length of the square cylinder) does not change … csc himachal pradeshWebJan 12, 2024 · The wake flows behind the cylinders are decomposed into energy optimal modes (POD modes) and dynamical relevant modes (DMD modes). A reduced-order … dyson airwrap for thin fine hairWebDec 6, 2013 · Vibration Induced by Cross-Flow. 2.1 Single circular cylinder. 2.2 Two circular cylinders in cross-flow. 2.3 Multiple circular cylinders. 2.4 Bodies of rectangular and other cross-section shapes. 2.5 Acoustic resonance in tube bundles. 2.6 Prevention of FIV. References. Chapter 3. Vibration Induced by External Axial Flow. 3.1 Single … cschip