Numerical Modelling of Overtopping Flow Velocity and Layer Thickness at the Waterside Edge of the Dike Crest

Weiqiu Chen; Jord J. Warmink; Marcel R.A. van Gent; Suzanne J.M.H. Hulscher

doi:10.3850/IAHR-39WC252171192022610

Numerical Modelling of Overtopping Flow Velocity and Layer Thickness at the Waterside Edge of the Dike Crest

Weiqiu Chen, Jord J. Warmink, Marcel R.A. van Gent, Suzanne J.M.H. Hulscher

Coastal Engineering

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Abstract

The overtopping flow velocity and layer thickness are closely related to the stability of coastal structures. Some empirical formulas are available for estimating the overtopping flow velocities and layer thicknesses. However, these empirical equations were derived based on experiments where only limited amount of wave conditions and dike configurations (mostly smooth straight waterside slopes) were tested. Therefore, the extrapolation of existing empirical equations to cases that are outside of the applicable ranges remains uncertain. Numerical modelling has become an important complementary tool to physical experiments. In this study, we developed a 2DV numerical model based on the OpenFOAM framework to simulate the overtopping flow velocity and layer thickness at the waterside edge of the dike crest. This model is validated by comparing the modelled overtopping flow parameters with the measured ones from physical experiments. The model validation shows that the 2DV OpenFOAM model is capable of predicting the overtopping flow parameters with a low probability (2%) of exceedance reasonably well although the overtopping layer thickness is slightly overestimated.

Original language	English
Title of host publication	Proceedings of the 39th IAHR World Congress (Granada, 2022)
Editors	Miguel Ortega-Sánchez
Publisher	IAHR
Pages	4413-4421
Number of pages	9
ISBN (Print)	978-90-832612-1-8
DOIs	https://doi.org/10.3850/IAHR-39WC252171192022610
Publication status	Published - 2022
Event	39th IAHR World Congress, 2022 - Granada, Spain Duration: 19 Jun 2022 → 24 Jun 2022

Publication series

Name	Proceedings of the IAHR World Congress
Publisher	International Association for Hydro-Environment Engineering and Research
ISSN (Print)	2521-7119
ISSN (Electronic)	2521-716X

Conference

Conference	39th IAHR World Congress, 2022
Country/Territory	Spain
City	Granada
Period	19/06/22 → 24/06/22

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

CFD
Numerical model
OpenFOAM
Overtopping flow parameters

Access to Document

10.3850/IAHR-39WC252171192022610

Numerical Modelling of Overtopping Flow Velocity and Layer Thickness at the Waterside Edge of the Dike CrestFinal published version, 840 KB

Cite this

Chen, W., Warmink, J. J., van Gent, M. R. A., & Hulscher, S. J. M. H. (2022). Numerical Modelling of Overtopping Flow Velocity and Layer Thickness at the Waterside Edge of the Dike Crest. In M. Ortega-Sánchez (Ed.), Proceedings of the 39th IAHR World Congress (Granada, 2022) (pp. 4413-4421). (Proceedings of the IAHR World Congress). IAHR. https://doi.org/10.3850/IAHR-39WC252171192022610

@inproceedings{1c7d207e52c64cb1bfbf22cf80bd323f,

title = "Numerical Modelling of Overtopping Flow Velocity and Layer Thickness at the Waterside Edge of the Dike Crest",

abstract = "The overtopping flow velocity and layer thickness are closely related to the stability of coastal structures. Some empirical formulas are available for estimating the overtopping flow velocities and layer thicknesses. However, these empirical equations were derived based on experiments where only limited amount of wave conditions and dike configurations (mostly smooth straight waterside slopes) were tested. Therefore, the extrapolation of existing empirical equations to cases that are outside of the applicable ranges remains uncertain. Numerical modelling has become an important complementary tool to physical experiments. In this study, we developed a 2DV numerical model based on the OpenFOAM framework to simulate the overtopping flow velocity and layer thickness at the waterside edge of the dike crest. This model is validated by comparing the modelled overtopping flow parameters with the measured ones from physical experiments. The model validation shows that the 2DV OpenFOAM model is capable of predicting the overtopping flow parameters with a low probability (2%) of exceedance reasonably well although the overtopping layer thickness is slightly overestimated.",

keywords = "CFD, Numerical model, OpenFOAM, Overtopping flow parameters",

author = "Weiqiu Chen and Warmink, {Jord J.} and {van Gent}, {Marcel R.A.} and Hulscher, {Suzanne J.M.H.}",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ; 39th IAHR World Congress, 2022 ; Conference date: 19-06-2022 Through 24-06-2022",

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doi = "10.3850/IAHR-39WC252171192022610",

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Chen, W, Warmink, JJ, van Gent, MRA & Hulscher, SJMH 2022, Numerical Modelling of Overtopping Flow Velocity and Layer Thickness at the Waterside Edge of the Dike Crest. in M Ortega-Sánchez (ed.), Proceedings of the 39th IAHR World Congress (Granada, 2022). Proceedings of the IAHR World Congress, IAHR, pp. 4413-4421, 39th IAHR World Congress, 2022, Granada, Spain, 19/06/22. https://doi.org/10.3850/IAHR-39WC252171192022610

Numerical Modelling of Overtopping Flow Velocity and Layer Thickness at the Waterside Edge of the Dike Crest. / Chen, Weiqiu; Warmink, Jord J.; van Gent, Marcel R.A. et al.
Proceedings of the 39th IAHR World Congress (Granada, 2022). ed. / Miguel Ortega-Sánchez. IAHR, 2022. p. 4413-4421 (Proceedings of the IAHR World Congress).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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T1 - Numerical Modelling of Overtopping Flow Velocity and Layer Thickness at the Waterside Edge of the Dike Crest

AU - Chen, Weiqiu

AU - Warmink, Jord J.

AU - van Gent, Marcel R.A.

AU - Hulscher, Suzanne J.M.H.

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2022

Y1 - 2022

N2 - The overtopping flow velocity and layer thickness are closely related to the stability of coastal structures. Some empirical formulas are available for estimating the overtopping flow velocities and layer thicknesses. However, these empirical equations were derived based on experiments where only limited amount of wave conditions and dike configurations (mostly smooth straight waterside slopes) were tested. Therefore, the extrapolation of existing empirical equations to cases that are outside of the applicable ranges remains uncertain. Numerical modelling has become an important complementary tool to physical experiments. In this study, we developed a 2DV numerical model based on the OpenFOAM framework to simulate the overtopping flow velocity and layer thickness at the waterside edge of the dike crest. This model is validated by comparing the modelled overtopping flow parameters with the measured ones from physical experiments. The model validation shows that the 2DV OpenFOAM model is capable of predicting the overtopping flow parameters with a low probability (2%) of exceedance reasonably well although the overtopping layer thickness is slightly overestimated.

AB - The overtopping flow velocity and layer thickness are closely related to the stability of coastal structures. Some empirical formulas are available for estimating the overtopping flow velocities and layer thicknesses. However, these empirical equations were derived based on experiments where only limited amount of wave conditions and dike configurations (mostly smooth straight waterside slopes) were tested. Therefore, the extrapolation of existing empirical equations to cases that are outside of the applicable ranges remains uncertain. Numerical modelling has become an important complementary tool to physical experiments. In this study, we developed a 2DV numerical model based on the OpenFOAM framework to simulate the overtopping flow velocity and layer thickness at the waterside edge of the dike crest. This model is validated by comparing the modelled overtopping flow parameters with the measured ones from physical experiments. The model validation shows that the 2DV OpenFOAM model is capable of predicting the overtopping flow parameters with a low probability (2%) of exceedance reasonably well although the overtopping layer thickness is slightly overestimated.

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M3 - Conference contribution

AN - SCOPUS:85182013531

SN - 978-90-832612-1-8

T3 - Proceedings of the IAHR World Congress

SP - 4413

EP - 4421

BT - Proceedings of the 39th IAHR World Congress (Granada, 2022)

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PB - IAHR

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ER -

Numerical Modelling of Overtopping Flow Velocity and Layer Thickness at the Waterside Edge of the Dike Crest

Abstract

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Keywords

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