experimental numerical and optimisation study of oil spill containment boom
DESCRIPTION
15-19 th May IOSC 2005. Experimental Numerical and Optimisation Study of Oil Spill Containment Boom. F. Muttin , S. Nouchi. Ecole d’Ingénieurs en Génie des Systèmes Industriels La Rochelle, France. Partnership. SIMBAR project http://simbar.eigsi.fr EIGSI - Structural analysis - PowerPoint PPT PresentationTRANSCRIPT
Experimental Numerical and Optimisation Study of Oil Spill
Containment Boom
Ecole d’Ingénieurs en Génie des Systèmes Industriels
La Rochelle, France.
F. Muttin, S. Nouchi
15-19 th May IOSC 2005
Partnership
SIMBAR project http://simbar.eigsi.frSIMBAR project http://simbar.eigsi.frEIGSI - Structural analysisEIGSI - Structural analysisLa Rochelle University – Hydrodynamic La Rochelle University – Hydrodynamic
bassinbassinEDF R&D – Fluid Flow analysisEDF R&D – Fluid Flow analysisCEDRE - Expertise & Industrials aspectsCEDRE - Expertise & Industrials aspectsCETMEF – French Ministry coastal protectionCETMEF – French Ministry coastal protection
RITMER Network RITMER Network www.ritmer.org/fr/index.html MEDD French Governement grant MEDD French Governement grant
n°CV03000142n°CV03000142
Geometry and Stress V=0.5 m/s
Up sideUp side
Down sideDown side
add more a top skirt leechadd more a top skirt leech
add a bottom skirt chainadd a bottom skirt chain
Geometry and stress V=0.3 m/s
0 1 2 3
0
0.5
1
1.5
Section 3
0 1 2 3
0
0.5
1
1.5
Section 6
0 1 2 3
0
0.5
1
1.5
Section 9
-22.5996
Float & skirt only reinforcement bottom skirtFloat & skirt only reinforcement bottom skirt
0 1 2 3-1
-0.5
0
0.5
1
1.5
2Section 3
0 1 2 3-1
-0.5
0
0.5
1
1.5
2Section 6
0 1 2 3-1
-0.5
0
0.5
1
1.5
2Section 9
7.6
With chain and leech V=0,3 m/sWith chain and leech V=0,3 m/s
With chain V=0,4 m/sWith chain V=0,4 m/s
Geometry and stress
0 1 2 3
0
0.5
1
1.5
Section 3
0 1 2 3
0
0.5
1
1.5
Section 6
0 1 2 3
0
0.5
1
1.5
Section 9
-31°
0 1 2 3
0
0.5
1
1.5
Section 3
0 1 2 3
0
0.5
1
1.5
Section 6
0 1 2 3
0
0.5
1
1.5
Section 9
θ -36°
Boom Conception Variation
Stiffness increase (*2) of the skirt bottom,with iso-elasticity of the wholle skirt (stiffness decrease of 2/3 of the rest of the skirt)
Référence n°1L 30 mR 55 cmh 75 cmP 200 mbarV 0.3 m/sW 12kg/m + 1kg/m fabricE 450 daN/5cm <=> 5% , = 0.45
Prestress of the skirt bottom. The ratio 5/8% means 5/8*30m/100 of lenghtless
Lest chain under the skirt bottom . The height is 25 cm between skirt and lest
Skirt Angulationthêta section jupe milieu élément (degrés)
4
6
8
10
12
Ba
s d
e ju
pe
2x
plu
s ra
ide
(2/3
su
r re
ste
)
Pré
con
tra
int
5/8
%
Ab
ais
sem
en
t le
st 2
5 c
m
Ré
fére
nce
L3
0m
P 2
00
mb
ar
v 0
,3 m
/sn
u 0
,45
E
90
00
00
N/m
thêta section jupe milieu élément(degrés)
Référence
thêta (Smax bas jupe - Smax haut jupe) V 0,3 m/s
4
6
8
10
12
0,0 1000,0 2000,0 3000,0 4000,0 5000,0
Smax bas jupe- Smax haut jupe (N/m)
thêt
a (°
)
Série1
Linéaire (Série1)
Référence
Boom Section of 150 m,V = 0.3 m/s
Geometry of sections (without chain):
Stress:
Central skirt angulation 4°
Up-stream
Down-stream
Complete boom contingency plan 750 m
Provisory Geometry, coffers fixed
Provisory Internal Stress, coffers fixedProvisory Geometry,
without anchorage system
Hydrodynamic
CEDRE – CEDRE –
polludrome visualisation testpolludrome visualisation test
LNHE –LNHE –
SPH numerical methodSPH numerical method Doc. CEDRE
Doc. LNHE EDF
Structural computations
L 30 m V 0.3m/s L 30 m V 0.3m/s
Stress balance during iteration Stress balance during iteration solutionssolutions
boom without skirt bottom chainboom without skirt bottom chain
Présentation Microsoft PowerPoint
Conclusion
Boom modelling (coastal fluid flow Boom modelling (coastal fluid flow Telemac2D)Telemac2D)
Coastal zone-test choiceCoastal zone-test choice Industrial progress implementationIndustrial progress implementation