In-situ measurements of vessel behavior during lock … · 1 In-situ measurements of vessel behavior In-situ measurements of vessel behavior during lock operation C. SAVARY, D. BOUSMAR,

In-situ measurements of vessel behavior 1

In-situ measurements of vessel behavior

during lock operation C. SAVARY, D. BOUSMAR, J.M. HIVER

SPW, Hydraulic Research Laboratory

In-situ measurements of vessel behavior 2

Lock filling/emptying design

works cost ↔ filling duration mooring forces

In-situ measurements of vessel behavior 3

Lock filling/emptying design

Numerical modeling → water surface slope Representative of mooring forces ?

In-situ measurements of vessel behavior 4

Summary • Introduction • Seine-Scheldt project • Measurement set-up • Head losses and water slope • Vessel motion • Conclusion

In-situ measurements of vessel behavior 5

Seine-Scheldt project

Wallonia: • 4 new locks • 2 new weirs • Channel rectifications

CEMT Class Va (2000t)

In-situ measurements of vessel behavior 6

Seine-Scheldt project

• New locks: filling through

short culverts • Numerical model

– water slopes • Scale model

– head losses – velocity profile

• In-situ – vessel motion

In-situ measurements of vessel behavior 7

Summary • Introduction • Seine-Scheldt project • Measurement set-up • Head losses and water slope • Vessel motion • Conclusion

In-situ measurements of vessel behavior 8

Measurement set-up • Roselies lock • River Sambre • 112 m x 12,50 m • Lift 3,5m • Loop culverts

(no dissipation chamber) • Fixed bollards

In-situ measurements of vessel behavior 9

Measurement set-up

• Valves and gates position • Head in culverts • Water level (upstream, lock, downstream) • Vessel motion → 48 instruments

In-situ measurements of vessel behavior 10

Valves and gates position

In-situ measurements of vessel behavior 11

Head and water levels

In-situ measurements of vessel behavior 12

Vessel

In-situ measurements of vessel behavior 13

Vessel

In-situ measurements of vessel behavior 14

Measurement set-up • 3 days on site • 22 recording

(filling or emptying) • 12 asymmetric

(one valve only) • 12 with vessel → About 6 useful

In-situ measurements of vessel behavior 15

Summary • Introduction • Seine-Scheldt project • Measurement set-up • Head losses and water slope • Vessel motion • Conclusion

In-situ measurements of vessel behavior 16

Leveling measurement

-0.5

0.5

1.5

2.5

3.5

10:50 10:52 10:54 10:56 10:58 11:00 11:02 11:04 11:06 11:08

nive

au (m

)

ZamZavZmoy

In-situ measurements of vessel behavior 17

Leveling measurement

-10

-5

0

5

10

15

20

25

10:50 10:52 10:54 10:56 10:58 11:00 11:02 11:04 11:06 11:08

Dis

char

ge (m

³/s)

In-situ measurements of vessel behavior 18

Leveling measurement

-10

10

30

50

70

90

10:20 10:30 10:40 10:50 11:00 11:10 11:20 11:30 11:40

But

terf

ly v

alve

ope

ning

(°)

Vam1Vam0Vav1Vav0

In-situ measurements of vessel behavior 19

Leveling measurement

-1

0

1

2

3

4

5

11:54 11:56 11:58 12:00 12:02 12:04 12:06 12:08 12:10

Hea

d (m

)

HamH Cg0H Cg1H sasHav

Valve loss

In-situ measurements of vessel behavior 20

Head losses: valves

0.01

0.1

1

10

100

1000

0 10 20 30 40 50 60 70 80 90angle (°)

z

LencastreLewinHanrezVam0Vam1Vav0Vav1

In-situ measurements of vessel behavior 21

Water surface slope

-2

-1.5

-1

-0.5

0

0.5

1

1.5

2

10:50 10:52 10:54 10:56 10:58 11:00 11:02 11:04 11:06 11:08

Wat

er s

urfa

ce s

lope

(1/1

000)

Sw - leftSw - rightSw

In-situ measurements of vessel behavior 22

Summary • Introduction • Seine-Scheldt project • Measurement set-up • Head losses and water slope • Vessel motion • Conclusion

In-situ measurements of vessel behavior 23

Vessel motion

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

10:50 10:52 10:54 10:56 10:58 11:00 11:02

Slop

es (‰

)

Vessel, total stationVessel, GPSWater surfaceVessel, clinometer

Montana, 80m x 8.20m, empty

In-situ measurements of vessel behavior 24

Vessel motion

In-situ measurements of vessel behavior 25

Vessel motion

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

10:50 10:52 10:54 10:56 10:58 11:00 11:02

Slop

e (1

/100

0), v

esse

l dis

plac

emen

t (m

) Vessel inclinationLongitudinal displ.Lateral displ.

In-situ measurements of vessel behavior 26

Vessel motion

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

15:16 15:18 15:20 15:22 15:24 15:26

Slop

e (‰

)

Vessel, total stationVessel, GPSWater surface

Playboy, 95m x 9.50m, loaded 2.20m draught

In-situ measurements of vessel behavior 27

Vessel motion

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

15:16 15:18 15:20 15:22 15:24 15:26

Slop

e (1

/100

0), v

esse

l dis

plac

emen

t (m

) Vessel inclinationLongitudinal displ.Lateral displ.

In-situ measurements of vessel behavior 28

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

1.5

2.0

14:08 14:10 14:12 14:14 14:16 14:18

Slop

e (‰

)

Vessel, total stationWater surface

Vessel motion

Cassidy, 110m x 9.50m, loaded 2.60m draught

Wave period: 50s vs 35s

In-situ measurements of vessel behavior 29

Conclusions

• In-situ measurements – Uneasy but interesting… still to be improved

• Vessel inclination close to water slope – Slopes found larger than expected (> 1/1000)

• Significant dynamic effects (loose lines) • Impact of vessel on water flow

In-situ measurements of vessel behavior 30

Thank you for your attention