Details
| Original language | English |
|---|---|
| Article number | 1333 |
| Journal | Water (Switzerland) |
| Volume | 11 |
| Issue number | 7 |
| Early online date | 28 Jun 2019 |
| Publication status | Published - Jul 2019 |
Abstract
Due to climatic change and the increased usage of coastal areas, there is an increasing risk of dike failures along the coasts worldwide. Wave run-up plays a key role in the planning and design of a coastal structure. Coastal engineers use empirical equations for the determination of wave run-up. These formulae generally include the influence of various hydraulic, geometrical and structural parameters, but neglect the effect of the curvature of coastal dikes on wave run-up and overtopping. The scope of this research is to find the effects of the dike curvature on wave run-up for regular wave attack by employing numerical model studies for various dike-opening angles and comparing it with physical model test results. A numerical simulation is carried out using DualSPHysics, a mesh-less model and OpenFOAM, a mesh-based model. A new influence factor is introduced to determine the influence of curvature along a dike line. For convexly curved dikes (α d = 210° to 270°) under perpendicular wave attack, a higher wave run-up was observed for larger opening angles at the center of curvature whereas for concavely curved dikes (α d = 90° to 150°) under perpendicular wave attack, wave run-up increases at the center of curvature as the opening angle decreases. This research aims to contribute a more precise analysis and understanding the influence of the curvature in a dike line and thus ensuring a higher level of protection in the future development of coastal structures.
Keywords
- Curved dike, DualSPHysics, OpenFOAM, Physical model tests, Wave run-up
ASJC Scopus subject areas
- Environmental Science(all)
- Water Science and Technology
- Social Sciences(all)
- Geography, Planning and Development
- Agricultural and Biological Sciences(all)
- Aquatic Science
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
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In: Water (Switzerland), Vol. 11, No. 7, 1333, 07.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Influence of Convex and Concave Curvatures in a Coastal Dike Line on Wave Run-up
AU - Subramaniam, Suba Periyal
AU - Scheres, Babette
AU - Schilling, Malte
AU - Liebisch, Sven
AU - Kerpen, Nils B.
AU - Schlurmann, Torsten
AU - Altomare, Corrado
AU - Schüttrumpf, Holger
N1 - Funding Information: Funding: This research was funded by Federal Ministry of Education and Research, Germany under ConDyke project (BMBF_03KIS0108). C.A. activity is funded from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska–Curie grant agreement No.: 792370.
PY - 2019/7
Y1 - 2019/7
N2 - Due to climatic change and the increased usage of coastal areas, there is an increasing risk of dike failures along the coasts worldwide. Wave run-up plays a key role in the planning and design of a coastal structure. Coastal engineers use empirical equations for the determination of wave run-up. These formulae generally include the influence of various hydraulic, geometrical and structural parameters, but neglect the effect of the curvature of coastal dikes on wave run-up and overtopping. The scope of this research is to find the effects of the dike curvature on wave run-up for regular wave attack by employing numerical model studies for various dike-opening angles and comparing it with physical model test results. A numerical simulation is carried out using DualSPHysics, a mesh-less model and OpenFOAM, a mesh-based model. A new influence factor is introduced to determine the influence of curvature along a dike line. For convexly curved dikes (α d = 210° to 270°) under perpendicular wave attack, a higher wave run-up was observed for larger opening angles at the center of curvature whereas for concavely curved dikes (α d = 90° to 150°) under perpendicular wave attack, wave run-up increases at the center of curvature as the opening angle decreases. This research aims to contribute a more precise analysis and understanding the influence of the curvature in a dike line and thus ensuring a higher level of protection in the future development of coastal structures.
AB - Due to climatic change and the increased usage of coastal areas, there is an increasing risk of dike failures along the coasts worldwide. Wave run-up plays a key role in the planning and design of a coastal structure. Coastal engineers use empirical equations for the determination of wave run-up. These formulae generally include the influence of various hydraulic, geometrical and structural parameters, but neglect the effect of the curvature of coastal dikes on wave run-up and overtopping. The scope of this research is to find the effects of the dike curvature on wave run-up for regular wave attack by employing numerical model studies for various dike-opening angles and comparing it with physical model test results. A numerical simulation is carried out using DualSPHysics, a mesh-less model and OpenFOAM, a mesh-based model. A new influence factor is introduced to determine the influence of curvature along a dike line. For convexly curved dikes (α d = 210° to 270°) under perpendicular wave attack, a higher wave run-up was observed for larger opening angles at the center of curvature whereas for concavely curved dikes (α d = 90° to 150°) under perpendicular wave attack, wave run-up increases at the center of curvature as the opening angle decreases. This research aims to contribute a more precise analysis and understanding the influence of the curvature in a dike line and thus ensuring a higher level of protection in the future development of coastal structures.
KW - Curved dike
KW - DualSPHysics
KW - OpenFOAM
KW - Physical model tests
KW - Wave run-up
KW - Coastal engineering
KW - Levees
KW - Mesh generation
KW - Numerical models
KW - Underwater foundations
KW - Center of curvature
KW - Mesh-based modeling
KW - Physical model test
KW - Planning and design
KW - Structural parameter
KW - Wave runup
KW - Hydraulic structures
KW - climate change
KW - coastal structure
KW - coastal zone
KW - model test
KW - overtopping
KW - software
KW - wave runup
KW - Curved dike
KW - DualSPHysics
KW - OpenFOAM
KW - Physical model tests
KW - Wave run-up
UR - http://www.scopus.com/inward/record.url?scp=85068564144&partnerID=8YFLogxK
U2 - 10.3390/w11071333
DO - 10.3390/w11071333
M3 - Article
VL - 11
JO - Water (Switzerland)
JF - Water (Switzerland)
SN - 2073-4441
IS - 7
M1 - 1333
ER -