Numerical Study Of An Oil Spill Containment
Boom By The Finite-element Method
Author(s)
F. Muttin & S. Nouchi
Abstract
Oil-spill boom is a technological response to water pollution by floating
hydrocarbon. A boom is composed mainly of a floating tube, an immerged skirt,
and a longitudinal chain on the skirt bottom. A membrane finite-element is used
to represent numerically the different parts of the boom. The dominant external
force comes from maritime current velocity. The gravity force comes mainly
from the chain. It is balanced by the hydrostatic force applied to the tube bottom
line. It is admitted that a sea current higher than 0.35 m/s produces oil leaks
under the boom. The numerical model is available to study a full boom
contingency planning. A boom section model is defined first, having a minimal
number of degrees of freedom. It permits using a homothetic scaling to provide
an accurate length model. After, by applying a duplication operator, a real-life
length model is obtained (L>750 m). It is completed by the mooring of the
barrage on the sea bed. The different assumptions made on the elementary model
are given. Operational results on a boom contingency planning are also given.
Parameters like skirt angle, skirt curvature, and chain stress, handle the boom
response performances. This work was undertaken with the support of the
French Environmental Administration.
Keywords: hydrocarbon, oil-spill boom, contingency planning, finite-element.
1 Introduction
To recover oil on water during an oil-spill different mechanical responses are
commonly used: confinement boom, skimmer pump and \“koseq” rigid dikes on
both sides of the recovery vessel. This paper presents the study of booms by a
numerical analysis.
Keywords
hydrocarbon, oil-spill boom, contingency planning, finite-element.
Related Book
Other papers in this volume
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