Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 33rd International Conference on Coastal Engineering 2012, ICCE 2012 |
| Publisher | American Society of Civil Engineers (ASCE) |
| ISBN (print) | 9780989661119 |
| Publication status | Published - 2012 |
| Event | 33rd International Conference on Coastal Engineering 2012, ICCE 2012 - Santander, Spain Duration: 1 Jul 2012 → 6 Jul 2012 |
Publication series
| Name | Proceedings of the Coastal Engineering Conference |
|---|---|
| ISSN (Print) | 0161-3782 |
Abstract
Hydraulic model tests at a scale of 1:10 are carried out in a 40 m × 25 m wave basin with a state-of-the-art 3D wave generator in order to collect wave overtopping data at vertical walls and dykes with topped vertical walls. Wave conditions in the near field of the structures, velocities under waves and the mean overtopping discharge are measured. The experiments have been commissioned by the Lower Saxony Water Management, Coastal Defense and Nature Conservation Agency (NLWKN) with the purpose to deliver essential overtopping data for validation of numerical models. Two main geometries are analyzed - each for two specific wave spectra. Overtopping rates are investigated with respect to the remaining freeboard height Rc and the influence of oblique wave attack β{0°, 10°, 30°, 40°, 50°, 60°}. Results are compared with existing analytical approaches. As expected for this special geometrical coastal protection structure, it is examined that overtopping discharges increase with decreasing remaining freeboard. Intensity of the reduction is more dependent on the wave spectra than on the dyke geometry. Mean wave overtopping rate increases with decreasing relative water depth H m0/d directly in front of the vertical wall. Furthermore, the mean wave overtopping rates decrease with an increasing angle of wave attack β. The correlation between mean wave overtopping rate and freeboard height is given in four newly adapted design formulas, describing the overtopping performance of the two discussed dyke geometries with topped vertical walls.
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Ocean Engineering
- Earth and Planetary Sciences(all)
- Oceanography
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Proceedings of the 33rd International Conference on Coastal Engineering 2012, ICCE 2012. American Society of Civil Engineers (ASCE), 2012. (Proceedings of the Coastal Engineering Conference).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Wave overtopping at dykes with topped vertical wall - Impacts of oblique wave attack
AU - Kerpen, Nils B.
AU - Schlurmann, Torsten
N1 - Cited By :1 Export Date: 1 February 2021
PY - 2012
Y1 - 2012
N2 - Hydraulic model tests at a scale of 1:10 are carried out in a 40 m × 25 m wave basin with a state-of-the-art 3D wave generator in order to collect wave overtopping data at vertical walls and dykes with topped vertical walls. Wave conditions in the near field of the structures, velocities under waves and the mean overtopping discharge are measured. The experiments have been commissioned by the Lower Saxony Water Management, Coastal Defense and Nature Conservation Agency (NLWKN) with the purpose to deliver essential overtopping data for validation of numerical models. Two main geometries are analyzed - each for two specific wave spectra. Overtopping rates are investigated with respect to the remaining freeboard height Rc and the influence of oblique wave attack β{0°, 10°, 30°, 40°, 50°, 60°}. Results are compared with existing analytical approaches. As expected for this special geometrical coastal protection structure, it is examined that overtopping discharges increase with decreasing remaining freeboard. Intensity of the reduction is more dependent on the wave spectra than on the dyke geometry. Mean wave overtopping rate increases with decreasing relative water depth H m0/d directly in front of the vertical wall. Furthermore, the mean wave overtopping rates decrease with an increasing angle of wave attack β. The correlation between mean wave overtopping rate and freeboard height is given in four newly adapted design formulas, describing the overtopping performance of the two discussed dyke geometries with topped vertical walls.
AB - Hydraulic model tests at a scale of 1:10 are carried out in a 40 m × 25 m wave basin with a state-of-the-art 3D wave generator in order to collect wave overtopping data at vertical walls and dykes with topped vertical walls. Wave conditions in the near field of the structures, velocities under waves and the mean overtopping discharge are measured. The experiments have been commissioned by the Lower Saxony Water Management, Coastal Defense and Nature Conservation Agency (NLWKN) with the purpose to deliver essential overtopping data for validation of numerical models. Two main geometries are analyzed - each for two specific wave spectra. Overtopping rates are investigated with respect to the remaining freeboard height Rc and the influence of oblique wave attack β{0°, 10°, 30°, 40°, 50°, 60°}. Results are compared with existing analytical approaches. As expected for this special geometrical coastal protection structure, it is examined that overtopping discharges increase with decreasing remaining freeboard. Intensity of the reduction is more dependent on the wave spectra than on the dyke geometry. Mean wave overtopping rate increases with decreasing relative water depth H m0/d directly in front of the vertical wall. Furthermore, the mean wave overtopping rates decrease with an increasing angle of wave attack β. The correlation between mean wave overtopping rate and freeboard height is given in four newly adapted design formulas, describing the overtopping performance of the two discussed dyke geometries with topped vertical walls.
KW - Dyke
KW - Oblique wave attack
KW - Vertical wall
KW - Wave overtopping
KW - Conservation
KW - Electric equipment protection
KW - Geometry
KW - Hydraulic models
KW - Shore protection
KW - Water management
KW - Hydraulic model test
KW - Mean overtopping discharge
KW - Overtopping discharge
KW - Validation of numerical model
KW - Wave overtoppings
KW - Water waves
UR - http://www.scopus.com/inward/record.url?scp=85085402026&partnerID=8YFLogxK
U2 - 10.9753/icce.v33.structures.60
DO - 10.9753/icce.v33.structures.60
M3 - Conference contribution
AN - SCOPUS:85085402026
SN - 9780989661119
T3 - Proceedings of the Coastal Engineering Conference
BT - Proceedings of the 33rd International Conference on Coastal Engineering 2012, ICCE 2012
PB - American Society of Civil Engineers (ASCE)
T2 - 33rd International Conference on Coastal Engineering 2012, ICCE 2012
Y2 - 1 July 2012 through 6 July 2012
ER -