Stefanie Lorke, Babette Scheres, Holger Schüttrumpf, Antje Bornschein, Reinhard Pohl


Flow processes like flow depths and flow velocities give important information about erosion and infiltration processes, which can lead to an unstable dike structure and consequently to dike failure. Up to now several physical model tests on wave run-up and wave overtopping are available to adjust and improve design formula for different dike structures. This kind of physical model tests have been performed in the here presented project FlowDike. Its main purpose is to consider two new aspects that could influence the assessment of wave run-up and wave overtopping as well as the flow processes on dikes which have not been investigated yet: longshore current and wind. Especially in estuaries and along coasts, the effect of tidal and storm induced currents combined with local wind fields can influence the incoming wave parameters at the dike toe as well as the wave run-up height, the wave overtopping rate and the flow processes on dikes. This paper will focus on these flow processes on dike slopes and dike crests on an 1:6 sloped dike influenced by oblique wave attack and longshore current.


flow processes; layer thickness; dike slope; dike crest; wave overtopping; physical model test; wave; current; dike; EurOtop-Manual

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Bornschein, A.; Pohl, R.; Lorke, S. (2012): Wave run-up on dikes. In: 5th SCACR 2011 - International Short Conference on Applied Coastal Research: Honouring Prof. Robert A. Dalrymple; 6th to 9th June, 2011, RWTH Aachen University, Germany; proceedings / ed. by H. Schüttrumpf [et al.]. pp. 121-128;

Bosman, G. 2007. Velocity and flow depth variations during wave overtopping, Master Thesis, Delft University of Technology. Delft, The Netherlands.

Bosman, G., van der Meer, J., Hoffmans, G., Schüttrumpf, H., Verhagen, H. J. 2008. Individual overtopping events at dikes. ASCE, 31st International Conference on Coastal Engineering 2008,Proceedings ICCE 2008, Hamburg, Germany, p. 2944-2956.

de Waal, J. P., van der Meer, J. W. 1992. Wave runup and overtopping on coastal structures. Proceedings of the 23rd International Conference on Coastal Engineering, pp. 1772 - 1784

EurOtop-Manual. 2007. Pullen, T., Allsop, N. W. H., Bruce, T., Kortenhaus, A., Schüttrumpf, H., van der Meer, J. W. Die Küste – EurOtop – Wave Overtopping of Sea Defences and Related Structures: Assessment Manual, Issue 73, URL:

Holthuijsen, L. H. 2007. Waves in oceanic and coastal waters. Cambridge Univ. Press. United Kingdom.

Lorke, S., Brüning, A., van der Meer, J., Schüttrumpf, H., Bornschein, A., Gilli, S., Pohl, R., Schlüter, F., Spano, M., Riha, J., Werk, S. 2010. On the effect of current on wave run-up and wave overtopping. ASCE, 32nd International Conference on Coastal Engineering 2010, Proceedings ICCE 2010. Shanghai, China.

Lorke, S., Bornschein, A., Schüttrumpf, H., Pohl, R. 2012. Influence of wind and current on wave runup and wave overtopping. Final report 2012. Dresden and Aachen, Germany.

Schüttrumpf, H. 2001. Wellenüberlaufströmung bei Seedeichen - Experimentelle und theoretische Untersuchungen. Dissertation an der TU Braunschweig, Germany.

Schüttrumpf, H., Oumeraci, H. 2005. Layer thicknesses and velocities of wave overtopping flow at seadikes. Journal of Coastal Engineering Vol. 52, Issue 6. pp. 473-495

Schüttrumpf, H., van Gent, M. R. A. 2003. Wave overtopping at seadikes. ASCE, Proceedings Coastal Structures 2003, p. 431-443. Portland, Oregon.

van Gent, M. R. A. 2002. Wave overtopping events at dikes, Proceedings of the 28th International Conference on Coastal Engineering. pp. 2203-2215. Cardiff, United Kingdom.