Trapping of Leaked Oil With Tandem Oil Fences With Lagrangian Analysis of Oil Droplet Motion

[+] Author and Article Information
C. M. Lee, K. H. Kang, N. S. Cho

Advanced Fluids Engineering Research Center, Pohang University of Science and Technology, Hyoja-dong, San 31, Pohang 790-784, Korea

J. Offshore Mech. Arct. Eng 120(1), 50-55 (Feb 01, 1998) (6 pages) doi:10.1115/1.2829520 History: Received January 20, 1997; Revised October 03, 1997; Online December 17, 2007


The effectiveness of two oil fences deployed in tandem to maximize the containment of oil is investigated. To assess the effectiveness of the tandem fences, the viscous flow field around the fences in tandem are analyzed numerically. Then, the trajectories of oil droplets which escaped beneath the fore fence are computed applying the Lagrangian particle-tracking method, to check under what conditions the droplet can be contained between the tandem fences. The validity of the calculated trajectories is checked experimentally by using spherical beads made of paraffin and droplets of kerosene, and the model fence of draft of 4 cm. The numerically predicted trajectories of the droplets show fairly good agreement with the experimental results. The method is applied to predict the motion of the weathered oil. It is shown, numerically, that most of the leaked oil can be trapped between tandem fences, when the distance between the fences is about 10 times the draft of the fore fence.

Copyright © 1998 by The American Society of Mechanical Engineers
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