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Rob Uittenbogaard (Deltares, Netherlands)
John Cornelisse (retired Deltares, Netherlands)
Scott Socolofsky (Texas A&M, College Station, USA)
Yann Friocourt (Rijkswaterstaat, Traffic, Water and Environment)
Bubble Plume
Towed in
Salt-Stratified Water
IAHR - 2015 Session 10 K
Commissioned by Vincent Beijk, Pieter Beeldman, Arie Broekhuizen, Yasin Keskin Rijkswaterstaat, agency of the Ministry of Infrastructure & Environment
Rinske v.d. Meer Rotterdam Harbour Authority
Salt Intrusion Rotterdam Waterway (400 m wide – 17 m deep)
Salt Intrusion Rotterdam Waterway (400 m wide – 17 m deep)
Delft3D-FLOW Z-layers
TRIWAQ σ-levels
Deltares
Water & Soil Tank
50 m long
5 m wide
2.5 m deep
&
Installation for
Salt Stratification
2.4m width
2.4m depth
Set-up in Deltares Water & Soil Tank (50 m long, 2.5m deep, up to 8m width)
Set-up Cameras and Dye Injection in Deltares Water & Soil Tank
Peel Height & Trap Height for a Bubble Plume in Density-Stratified Stagnant Water
Socolofsky & Adams (2008)
Separation Height for a Bubble Plume in a Current (No Stratification)
Socolofsky & Adams (2002)
Socolofsky & Rezvani (2014)
( )34
14
ζρ∆
= ∝PP a
Hh Q 0.88
ζ = ∝SS a
H Uh Q
Separation Height and Peel Height Applicable for a Bubble Plume in a Salt-Stratified (Δρ) Current U and Water depth H?
“Velocity”
“Stratification”
Linear Salt Stratification: Deltares Water & Soil Tank Texas A&M (0.7m depth)
Multiple-Tow Experiments in Salt-Stratified Water : Energy Efficiency
( ) [ ]tank
H
oJPE g A z z d zρ∆ = ∆∫
[ ]Ebuot P
PEη = −∆∆
[ ]ln 1 = +
HinjP p Q Wbuo a a Hatm
11%
12%
11%
17%
12%
10% 4.6%
0 10 20 30 40 50 60 70
10
20
30
40
50
60
70
horizontal position(cm)
verti
cal p
ositi
on(c
m)
15 cm/s, 1.5lit/min
PIV Texas A&M Scott Socolofsky, Maryam Rezvani & Kyle Feldman
1 Nℓ/min – 0.15 m/s
Cross Section of a Bubble Plume in a Current (no stratification)
Current
Side View Top View Deltares Tank
Front View
Deltares Tank
Current Current
Bubbe Plume can be Wider than Longer
Depending on Narrow or Wide Range in Bubble Size
