Abstract

Summary Two sets of tests have been conducted on short fairings with a chord-to-pipe-diameter ratio of approximately 1.5 partially covering a long pipe that was towed under a rotating arm at Reynolds numbers equivalent to those experienced by many production risers. From the first set of tests, results for pipes with continuous fairings over various lengths of the outer end of the pipe are presented, as well as for two configurations with partial coverage. From the second set of tests, results for a series of partial fairing coverage tests are presented that consisted of a more systematic variation of fairing density on the outer two joints. The results produced several practical conclusions that can be used for more economical marine tubular designs.

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