Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Vikas Jhingran"'
Publikováno v:
Ocean Engineering. 94:186-198
This paper addresses a practical problem: “Under what fractional coverage of buoyancy modules, would the vortex induced vibration (VIV) excitation on buoyant segments dominate the response?” The source of data is a recent model test on a 38 m lon
Publikováno v:
Journal of Fluids and Structures. 25:641-653
This paper is based on portions of a keynote presentation, which explored the boundaries of what is understood about the vibration behavior of long cylinders excited by vortex shedding. The source of data is a recent field experiment on a long flexib
Autor:
Stergios Liapis, Vikas Jhingran, Carl M. Larsen, Decao Yin, Jie Wu, Halvor Lie, Rolf Baarholm
Publikováno v:
Volume 2: CFD and VIV.
Vortex Induced Vibrations (VIV) can lead to fast accumulation of fatigue damage and increased drag loads on slender marine structures. A cylinder subjected to VIV can vibrate in both in-line (IL) and cross-flow (CF) directions. The CF response is dom
Autor:
Kenneth Bhalla, Stergios Liapis, Shell Early Denison, Steve Burman, Puneet Agarwal, Stephen Hodges, Dan Kluk, Saurabh Jain, Vikas Jhingran, Scot McNeill, Ron Young
Publikováno v:
Day 1 Mon, May 05, 2014.
Abstract A drilling campaign was recently undertaken by Shell Oil Company in a region with high surface and submerged currents. The water depth ranged from 5500–7000 ft at the various well sites in the region. Strong surface currents with maximum s
Publikováno v:
Volume 7: CFD and VIV.
This paper addresses a practical problem: “Under which coverage of buoyancy modules, would the Vortex Induced Vibration (VIV) excitation on buoyant segments dominate the response?” This paper explores the excitation competition between bare and b
Publikováno v:
Volume 5: Ocean Engineering; CFD and VIV.
Despite of considerable research activity during the last decades considerable uncertainties still remain in prediction of Vortex Induced Vibrations (VIV) of risers. Model tests of risers subjected to current have been shown to be a useful method for
Publikováno v:
Volume 5: Ocean Engineering; CFD and VIV.
This paper addresses a practical problem: “What portion of fairing or strake coverage may be lost or damaged, before the operator must take corrective measures?” This paper explores the effect of lost fairings (the exposure length) on Vortex-Indu
Publikováno v:
Volume 5: Ocean Engineering; CFD and VIV.
This paper explores the Reynolds number dependence of the Vortex-Induced Vibration (VIV) of flexible marine risers. Emphasis is placed on revealing the trends that exist between the Strouhal number and the Reynolds number and between the dimensionles
Publikováno v:
All Days.
Abstract As oil and gas exploration ventures into deeper waters, designing risers withsufficient extreme strength and fatigue life becomes a challenging task. Thistask is even more difficult in regions with strong currents at great depths. Among the
Autor:
Johnny Vogiatzis, Vikas Jhingran
Publikováno v:
Volume 7: CFD and VIV; Offshore Geotechnics.
Vortex-Induced Vibration (VIV) is a complex, non-linear fluid-structure interaction problem with important consequences for offshore risers, tendons and other tubulars. The prevalent approach in the industry is to use semi-empirical formulations to e