An Experimental Evaluation of Vortex-Induced Vibration of a Riser Bundle With Gaps

VIV model test results are presented for a bundle of three parallel pipes all lying in the same plane, similar to a riser with large kill and choke lines. The rigid model was attached to a spring-mounted frame in the MIT towing tank. The horizontal model was towed in the tank and allowed to respond...

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Bibliographic Details
Published in:Volume 5: Polar and Arctic Sciences and Technology; CFD and VIV
Main Authors: Cheng, Yongming, Yu, Alan, Vandiver, Jennifer M., Jaiswal, Vivek, Sheshadri, Aditi
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering
Format: Article in Journal/Newspaper
Language:English
Published: American Society of Mechanical Engineers (ASME) 2009
Subjects:
Arctic
Online Access:http://hdl.handle.net/1721.1/108378
Description
Summary:VIV model test results are presented for a bundle of three parallel pipes all lying in the same plane, similar to a riser with large kill and choke lines. The rigid model was attached to a spring-mounted frame in the MIT towing tank. The horizontal model was towed in the tank and allowed to respond in free vibration to vortex-induced vibration in the cross-flow direction. The angle of attack of the model was varied from 0 to 90 degrees. The model was tested with and without helical strakes. Without strakes the model exhibited significant vibration at 0 and 90 degrees angle of attack. Strakes suppressed VIV at all angles of attack.

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