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There is an increasing risk of dike failures along the coasts worldwide due to increase in relative MSL (Mean Sea Level) rise and increase in storm intensity. Wave run-up plays a key role in planning and design of coastal structures. Numerous research works were carried out on wave run-up and wave overtopping in the last few decades. However, limited information is available on the effect of the curvature in coastal dikes on wave run-up and overtopping. This research focuses on influence of curved dikes on wave run-up using numerical models. The numerical models used for this research are DualSPHysics and OpenFOAM. Analysis covers both wave run-up estimation and the underlying wave transformation processes at the curvature. The numerical analysis results show a complex behavior in wave transformation processes for curved dikes. Hence, this research aims to contribute a more precise analysis and understanding the influence of the curvature in the dike line and thus ensuring a higher level of protection in the future development of coastal structures.
Suba Periyal Subramaniam; Babette Scheres; Holger Schüttrumpf. Numerical Investigation of Wave Run-Up on Curved Dikes. Lecture Notes in Civil Engineering 2020, 79 -89.
AMA StyleSuba Periyal Subramaniam, Babette Scheres, Holger Schüttrumpf. Numerical Investigation of Wave Run-Up on Curved Dikes. Lecture Notes in Civil Engineering. 2020; ():79-89.
Chicago/Turabian StyleSuba Periyal Subramaniam; Babette Scheres; Holger Schüttrumpf. 2020. "Numerical Investigation of Wave Run-Up on Curved Dikes." Lecture Notes in Civil Engineering , no. : 79-89.
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 (αd = 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 (αd = 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.
Suba Periyal Subramaniam; Babette Scheres; Malte Schilling; Sven Liebisch; Nils B. Kerpen; Torsten Schlurmann; Corrado Altomare; Holger Schüttrumpf. Influence of Convex and Concave Curvatures in a Coastal Dike Line on Wave Run-up. Water 2019, 11, 1333 .
AMA StyleSuba Periyal Subramaniam, Babette Scheres, Malte Schilling, Sven Liebisch, Nils B. Kerpen, Torsten Schlurmann, Corrado Altomare, Holger Schüttrumpf. Influence of Convex and Concave Curvatures in a Coastal Dike Line on Wave Run-up. Water. 2019; 11 (7):1333.
Chicago/Turabian StyleSuba Periyal Subramaniam; Babette Scheres; Malte Schilling; Sven Liebisch; Nils B. Kerpen; Torsten Schlurmann; Corrado Altomare; Holger Schüttrumpf. 2019. "Influence of Convex and Concave Curvatures in a Coastal Dike Line on Wave Run-up." Water 11, no. 7: 1333.