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RESEARCH PAPERS: Offshore Mechanics

Hydrodynamic Forces on Pipelines: Model Tests

[+] Author and Article Information
M. B. Bryndum, V. Jacobsen

Danish Hydraulic Institute, Horsholm, Denmark

D. T. Tsahalis

Department of Chemical Engineering, University of Patras, Patra, Greece

J. Offshore Mech. Arct. Eng 114(4), 231-241 (Nov 01, 1992) (11 pages) doi:10.1115/1.2919975 History: Received March 20, 1990; Revised June 11, 1991; Online June 12, 2008

Abstract

An extensive model test program on the hydrodynamic forces on a submarine pipeline resting on the sea bottom and exposed to steady current, regular waves, combined steady current and regular waves, irregular waves, and combined steady current and irregular waves has been performed. The hydrodynamic forces in both the in-line and the cross-flow directions have been analyzed using three different methods, i.e., least-squares-fit analysis based on Morison-type equations, Fourier analysis, and maximum force analysis. The force coefficients associated with each method have been determined for a wide range of environmental conditions. The results of the tests are presented in terms of the calculated force coefficients and their dependence on various nondimensional parameters is discussed. Furthermore, comparisons with other test data are presented.

Copyright © 1992 by The American Society of Mechanical Engineers
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