Non-Repeatability, Scale- and Model Effects in Laboratory Measurement of Impact Loads Induced by an Overtopped Bore on a Dike Mounted Wall

Streicher, Maximilian; Kortenhaus, Andreas; Altomare, Corrado; Hughes, Steven A.; Marinov, Krasimir; Hofland, Bas; Chen, Xuexue; Suzuki, Tomohiro; Cappietti, Lorenzo

doi:10.1115/omae2019-96703

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…Validation of this numerical model is done by reproducing large-scale experiments of overtopped wave impacts on coastal dikes with a very shallow foreshore from the WAve LOads on WAlls (WALOWA) project [29]. The large-scale nature of these experiments reduces the scale effects significantly compared to small-scale experiments, which can be particularly important to the wave impacts on the dike-mounted vertical wall, especially in case of plunging breaking bore patterns and impulsive impacts [30].…”

Section: Introductionmentioning

confidence: 99%

Validation of RANS Modelling for Wave Interactions with Sea Dikes on Shallow Foreshores Using a Large-Scale Experimental Dataset

Gruwez

Altomare

Suzuki

et al. 2020

JMSE

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In this paper, a Reynolds-averaged Navier–Stokes (RANS) equations solver, interFoam of OpenFOAM®, is validated for wave interactions with a dike, including a promenade and vertical wall, on a shallow foreshore. Such a coastal defence system is comprised of both an impermeable dike and a beach in front of it, forming the shallow foreshore depth at the dike toe. This case necessitates the simulation of several processes simultaneously: wave propagation, wave breaking over the beach slope, and wave interactions with the sea dike, consisting of wave overtopping, bore interactions on the promenade, and bore impacts on the dike-mounted vertical wall at the end of the promenade (storm wall or building). The validation is done using rare large-scale experimental data. Model performance and pattern statistics are employed to quantify the ability of the numerical model to reproduce the experimental data. In the evaluation method, a repeated test is used to estimate the experimental uncertainty. The solver interFoam is shown to generally have a very good model performance rating. A detailed analysis of the complex processes preceding the impacts on the vertical wall proves that a correct reproduction of the horizontal impact force and pressures is highly dependent on the accuracy of reproducing the bore interactions.

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Section: Introductionmentioning

confidence: 99%

Validation of RANS Modelling for Wave Interactions with Sea Dikes on Shallow Foreshores Using a Large-Scale Experimental Dataset

Gruwez

Altomare

Suzuki

et al. 2020

JMSE

Self Cite

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show abstract

“…In scale effects (Yalin 1971, Le Me´haute´ 1990, Hughes 1993, Martin and Pohl 2000, Heller 2007, Scaling law, compressibility, surface tension, viscosity, water properties are included. In non-repeatability effects (Streicher et al 2019): 3D effects of turbulent bore front, Air entrainment, Air entrapment -Cushioning effect (Bullock et al 2007) need to be considered. In this study, only model and laboratory effects and scale effects are discussed.…”

Section: Introductionmentioning

confidence: 99%

Large-Scale and Small-Scale Effects in Wave Breaking Interaction on Vertical Wall Attached With Large Recurve Parapet

Ravindar¹,

Sriram²,

Schimmels³

et al. 2020

Int. Conf. Coastal. Eng.

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Two sets of experiments on the vertical wall attached with recurve parapets performed at 1:1 and 1:8 scale are compared to study the influence of scale, model and laboratory effects. The small-scale (1:8) experiment scaled to large-scale (1:1) using Froude scaling, and Cuomo et al. (2010) method are compared. Comparing both the methods for scaling impact pressure, Cuomo et al. (2010) predicts well in the impact zone, whereas Froude scaling is better in the up-rushing zone. In estimating integrated impact force, Froude scaling method over-estimates compared to Cuomo et al. (2010). Overall, Cuomo et al. (2010) work better for scaling up impact pressure and forces compared to Froude scaling method. These preliminary observations are based on one type of recurved parapets only.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/w9WipBjMWzw

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Approaches in Scaling Small-Scale Experiments on the Breaking Wave Interactions with a Vertical Wall Attached with Recurved Parapets

Ravindar

Sriram

Schimmels

et al. 2021

J. Waterway, Port, Coastal, Ocean Eng.

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Non-Repeatability, Scale- and Model Effects in Laboratory Measurement of Impact Loads Induced by an Overtopped Bore on a Dike Mounted Wall

Cited by 4 publications

References 13 publications

Validation of RANS Modelling for Wave Interactions with Sea Dikes on Shallow Foreshores Using a Large-Scale Experimental Dataset

Validation of RANS Modelling for Wave Interactions with Sea Dikes on Shallow Foreshores Using a Large-Scale Experimental Dataset

Large-Scale and Small-Scale Effects in Wave Breaking Interaction on Vertical Wall Attached With Large Recurve Parapet

Approaches in Scaling Small-Scale Experiments on the Breaking Wave Interactions with a Vertical Wall Attached with Recurved Parapets

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