Studying stability of a vertically suspended, fully submerged pipe conveying water (free-hanging water intake riser), researchers have found that if a critical flow velocity is reached, these pipes may flutter. However, there are different predictions for the value of this critical velocity. Researchers have mentioned values changing from infinitely small fluid velocities up to velocities which are unachievable in practice. The nonlinear hydrodynamic damping caused by the surrounding water seems to be crucial for correct description of the stability of the submerged riser aspirating fluid. In this paper, using the Morison’s equation, the nonlinear drag is taken into account as a function of the relative velocity between the current and the velocity of the riser itself. The nonlinear system is studied employing the Galerkin method. Ten-mode discretization turns out to be necessary to obtain an accurate result. It is shown that the current has a strong stabilizing effect. If the internal fluid flow exceeds a critical velocity the riser performs self-sustained oscillations with the amplitude smaller than one diameter.
Skip Nav Destination
ASME 2004 23rd International Conference on Offshore Mechanics and Arctic Engineering
June 20–25, 2004
Vancouver, British Columbia, Canada
Conference Sponsors:
- Ocean, Offshore, and Arctic Engineering Division
ISBN:
0-7918-3743-2
PROCEEDINGS PAPER
Instability of a Simplified Model of a Free Hanging Riser Conveying Fluid Available to Purchase
Guido Kuiper,
Guido Kuiper
Delft University of Technology, Delft, The Netherlands
Search for other works by this author on:
Adrei Metrikine,
Adrei Metrikine
Delft University of Technology, Delft, The Netherlands
Search for other works by this author on:
Mike Efthymiou
Mike Efthymiou
Shell International Exploration and Production BV, Rijswijk, The Netherlands
Search for other works by this author on:
Guido Kuiper
Delft University of Technology, Delft, The Netherlands
Adrei Metrikine
Delft University of Technology, Delft, The Netherlands
Mike Efthymiou
Shell International Exploration and Production BV, Rijswijk, The Netherlands
Paper No:
OMAE2004-51248, pp. 555-562; 8 pages
Published Online:
December 22, 2008
Citation
Kuiper, G, Metrikine, A, & Efthymiou, M. "Instability of a Simplified Model of a Free Hanging Riser Conveying Fluid." Proceedings of the ASME 2004 23rd International Conference on Offshore Mechanics and Arctic Engineering. 23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, Parts A and B. Vancouver, British Columbia, Canada. June 20–25, 2004. pp. 555-562. ASME. https://doi.org/10.1115/OMAE2004-51248
Download citation file:
13
Views
Related Proceedings Papers
Related Articles
The Stability of Fluid Production From a Flexible Riser
J. Energy Resour. Technol (June,2002)
An Investigation on the Use of Connors’ Equation to Predict Fluidelastic Instability in Cylinder Arrays
J. Pressure Vessel Technol (November,2001)
1992 CALVIN RICE LECTURE: Some Curiosity-Driven Research in Fluid
Structure Interactions and Its Current Applications
J. Pressure Vessel Technol (February,1993)
Related Chapters
Accommodation and Stability of Alloying Elements in Amorphous Grain Boundaries of Zirconia
Zirconium in the Nuclear Industry: 20th International Symposium
Production Riser Life Extension – A Class Perspective
Ageing and Life Extension of Offshore Facilities
Applications of Elastic-Plastic Fracture Mechanics in Section XI, ASME Code Evaluations
Online Companion Guide to the ASME Boiler & Pressure Vessel Codes