Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

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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

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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 Presentation

Transcript of Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

Page 1: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

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

Page 2: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

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

Page 3: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

Geometry and Stress V=0.5 m/s

Up sideUp side

Down sideDown side

Page 4: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

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

Page 5: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

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°

Page 6: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

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

Page 7: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

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

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

Page 8: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

Boom Section of 150 m,V = 0.3 m/s

Geometry of sections (without chain):

Stress:

Central skirt angulation 4°

Up-stream

Down-stream

Page 9: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

Complete boom contingency plan 750 m

Provisory Geometry, coffers fixed

Provisory Internal Stress, coffers fixedProvisory Geometry,

without anchorage system

Page 10: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

Hydrodynamic

CEDRE – CEDRE –

polludrome visualisation testpolludrome visualisation test

LNHE –LNHE –

SPH numerical methodSPH numerical method Doc. CEDRE

Doc. LNHE EDF

Page 11: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

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

Page 12: Experimental Numerical and Optimisation Study of Oil Spill Containment Boom

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