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Journal Article

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 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.

Full Publication

J. Kim Vandiver
Yongming Cheng
Vivek Jaiswal
Aditi Sheshadri
Alan Yu
Publication Date
January 1, 2009