Lift Forces on Pipelines in Steady Flow
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 113, Issue 2
Abstract
This paper considers the lift forces acting on a pipe with or without a small gap between the pipe and the seabed. From simple physical considerations, it is explained why the potential theory that predicts a downward lift force fails. A modified description of the potential flow in front of the pipe is developed, from which the lift force is evaluated if the undisturbed flow has no velocity gradients (shear‐free flow). The paper also discusses the effect of shear on the lift coefficient. The theoretical findings are supported by experiments.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Aschenbach, E. (1969). “Distribution of local pressure and skin friction around a circular cylinder in cross‐flow up to ” J. Fluid Mech. 34(4), 625–639.
2.
Bagnold, R. A. (1974). “Fluid forces on a body in shear‐flow; experimental use of ‘stationary’ flow.” Proc., Royal Society London, Series A, Vol. 340, 147–171.
3.
Bearman, P. W., and Zdravkovich, M. M. (1978). “Flow around a circular cylinder near a plane boundary.” J. Fluid Mech., 89(1), 33–47.
4.
Fredsøe, J., Sumer, B. M., Andersen, J., and Hensen, E. A. (1985). “Transverse vibrations of a cylinder very close to a plane wall.” OMAE, Dallas, Tex., 601–609.
5.
Jacobsen, V., Bryndum, M. B., and Fredsøe, J. (1984). “Determination of flow kinematics close to marine pipelines and their use in stability calculations.” Proceedings of the 16th Offshore Technology Conference, 3, OTC‐Paper 4833, Dallas, Tex., 481–492.
6.
Jones, W. T. (1971). “Forces on submarine pipelines from steady currents.” ASME Underwater Tech. Div., Petroleum Mech. Engrg. with Underwater Tech. Conf., Houston, Tex.
7.
Müller, W. von (1929). “Systeme von Doppelquellen in der ebenen Strömung.” Zeitschrift f. angew. Math. und Mech., 9, Heft 3, 200–213.
8.
Thomschke, H. (1971). “Experimentelle Untersuchung der stationären Umströmung von Kugel und Zylinder in Wandnähe.” Fakultät für Maschinenbau der Universität Karlsruhe, Karlsruhe, West Germany.
9.
Yamamoto, T., Nath, J. H., and Slotta, L. S. (1974). “Wave forces on cylinders near plane boundary.” J. Waterway Port Coastal Ocean Div., ASCE, 100(4), 345–360.
10.
Wright, J. C., and Yamamoto, T. (1979). “Wave forces on cylinders near plane boundaries.” J. Waterway Port Coastal Ocean Div., ASCE, 105(1), 1–14.
Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 113 • Issue 2 • March 1987
Pages: 139 - 155
Copyright
Copyright © 1987 ASCE.
History
Published online: Mar 1, 1987
Published in print: Mar 1987
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.