Walowa (Wave Loads on Walls)
Large-Scale Experiments in the Delta Flume
Maximilian Streicher (Universiteit Gent)
Andreas Kortenhaus (Universiteit Gent)
C Altomare (Flanders Hydraulics Research, Universiteit Gent)
Vincent Gruwez (Universiteit Gent)
Bas Hofland (TU Delft - Hydraulic Structures and Flood Risk)
X. Chen (TU Delft - Hydraulic Structures and Flood Risk)
Krasimir Marinov (Student TU Delft)
Babette Scheres (RWTH Aachen University)
H. Schüttrumpf (RWTH Aachen University)
Matthias Hirt (RWTH Aachen University)
Lorenzo Cappietti (University of Florence)
Andrea Esposito (Advanced Models and Methos in Maritime Engineering AM3)
Alessandra Saponieri (Politecnico di Bari)
Nico Valentini (Politecnico di Bari)
Giuseppe Tripepi (University of Calabria)
D.G.J. Pasqualini (Università degli Studi dell’Aquila)
Marcello Di Risio (Università degli Studi dell’Aquila)
Francesco Aristodemo (University of Calabria)
Leonardo Damiani (Politecnico di Bari)
Marc Willems (Flanders Hydraulics Research)
Dieter Vanneste (Flanders Hydraulics Research)
T. Suzuki (Flanders Hydraulics Research, TU Delft - Environmental Fluid Mechanics)
Mark Klein Breteler (Deltares)
Dorothea Kaste (Deltares)
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Abstract
Overtopping wave loads on vertical structures on top of a dike have been investigated in several small scale experiments in the past. A large-scale validation for a mild foreshore situation is still missing. Hence the WALOWA experimental campaign was carried out to address this topic. In the present paper the objectives of the WALOWA project are outlined in detail, the model and measurement set-up described and the test program presented. Furthermore, preliminary results featuring a single 1000 irregular waves test of the test program are highlighted. This includes the study of the mild and sandy foreshore evolution by comparing profiles before and after the test execution. The profile measurements are obtained with a mechanical profiler. The wave parameters offshore and at the dike toe are numerically simulated using a SWASH model. The numerical results are validated against the measurements. Finally, the force and pressure time series of the waves impacting against the wall are processed and filtered. The load cell measurements and the time series of integrated pressures are compared to each other and for each impact event the maximum force is derived.