Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 122867 |
| Fachzeitschrift | Ocean engineering |
| Jahrgang | 342 |
| Ausgabenummer | 2 |
| Frühes Online-Datum | 26 Sept. 2025 |
| Publikationsstatus | Veröffentlicht - Dez. 2025 |
Abstract
ishment processes in monopiles (internal water level response, jet velocities, and their nondimensional response
amplitude operators, RAOs) for both regular and irregular sea states. The experimental scale was set to 1:15
with regular wave periods 𝑇 = [2, 6] s and irregular peak wave periods of 𝑇𝑝 ∈ [4.16, 9.00] s. The relevant statis-
tical measures for the RAOs were intestigated, and nondimensional prediction formulas were proposed for both
regular and irregular waves. The experimental data was furthermore applied to validate a numerical model for
prediction of the internal water level response and jet velocities. The numerical model was subsequently applied
to predict the number of individual occurrences of jets as a function of the vertical elevation of the water replen-
ishment hole, and the numerical approach was deemed applicable for design of offshore monopile foundations.
Application to field-scale shows that extreme jet velocities in excess of 9-10 m/s must be expected under North
Sea conditions.
ASJC Scopus Sachgebiete
- Umweltwissenschaften (insg.)
- Environmental engineering
- Ingenieurwesen (insg.)
- Meerestechnik
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in: Ocean engineering, Jahrgang 342, Nr. 2, 122867, 12.2025.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Jet velocities in water replenishment holes: A large-scale experiment
AU - Jacobsen, Niels Gjøl
AU - Jalloul, Mazen Hoballah
AU - Welzel, Mario
AU - Schendel, Alexander
AU - Carstensen, Stefan
N1 - Publisher Copyright: © 2025 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
PY - 2025/12
Y1 - 2025/12
N2 - A large-scale experimental campaign in the GWK+ facility was performed for the description of the water replen-ishment processes in monopiles (internal water level response, jet velocities, and their nondimensional responseamplitude operators, RAOs) for both regular and irregular sea states. The experimental scale was set to 1:15with regular wave periods 𝑇 = [2, 6] s and irregular peak wave periods of 𝑇𝑝 ∈ [4.16, 9.00] s. The relevant statis-tical measures for the RAOs were intestigated, and nondimensional prediction formulas were proposed for bothregular and irregular waves. The experimental data was furthermore applied to validate a numerical model forprediction of the internal water level response and jet velocities. The numerical model was subsequently appliedto predict the number of individual occurrences of jets as a function of the vertical elevation of the water replen-ishment hole, and the numerical approach was deemed applicable for design of offshore monopile foundations.Application to field-scale shows that extreme jet velocities in excess of 9-10 m/s must be expected under NorthSea conditions.
AB - A large-scale experimental campaign in the GWK+ facility was performed for the description of the water replen-ishment processes in monopiles (internal water level response, jet velocities, and their nondimensional responseamplitude operators, RAOs) for both regular and irregular sea states. The experimental scale was set to 1:15with regular wave periods 𝑇 = [2, 6] s and irregular peak wave periods of 𝑇𝑝 ∈ [4.16, 9.00] s. The relevant statis-tical measures for the RAOs were intestigated, and nondimensional prediction formulas were proposed for bothregular and irregular waves. The experimental data was furthermore applied to validate a numerical model forprediction of the internal water level response and jet velocities. The numerical model was subsequently appliedto predict the number of individual occurrences of jets as a function of the vertical elevation of the water replen-ishment hole, and the numerical approach was deemed applicable for design of offshore monopile foundations.Application to field-scale shows that extreme jet velocities in excess of 9-10 m/s must be expected under NorthSea conditions.
KW - Jet velocities
KW - Monopile
KW - Water replenishment
UR - http://www.scopus.com/inward/record.url?scp=105017961490&partnerID=8YFLogxK
U2 - 10.1016/j.oceaneng.2025.122867
DO - 10.1016/j.oceaneng.2025.122867
M3 - Article
VL - 342
JO - Ocean engineering
JF - Ocean engineering
SN - 0029-8018
IS - 2
M1 - 122867
ER -