ARE REDUCED-SCALE EXPERIMENTS OF WAVE DAMPING BY VEGETATION SUITABLE FOR ENGINEERING WITH NATURE?

Daniel Cox; Kiernan Kelty; Pedro Lomonaco; Tori Tomiczek; Kayla Ostrow

doi:10.9753/icce.v37.waves.48

No. 37 (2022), Waves

No. 37 (2022)

ARE REDUCED-SCALE EXPERIMENTS OF WAVE DAMPING BY VEGETATION SUITABLE FOR ENGINEERING WITH NATURE?

Waves

Published 2023-09-01

Daniel Cox
Kiernan Kelty
Pedro Lomonaco
Tori Tomiczek
Kayla Ostrow

Daniel Cox

Kiernan Kelty

Pedro Lomonaco

Tori Tomiczek

Kayla Ostrow

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ARE REDUCED-SCALE EXPERIMENTS OF WAVE DAMPING BY VEGETATION SUITABLE FOR ENGINEERING WITH NATURE?. (2023). Coastal Engineering Proceedings, 37, waves.48. https://doi.org/10.9753/icce.v37.waves.48

Abstract

Wave damping by vegetation has been included in many numerical models for coastal engineering primarily through a parameterized expression for the wave height decay following Mendez and Losada (2004). CD is an empirical coefficient often derived from reduced-scale laboratory experiments in which alpha is measured directly. Multiple values of CD can be determined from a series of tests and CD is often given as a function of the Reynolds number, Re. These empirical relations for CD are subsequently used along with the vegetation and wave properties to estimate the wave damping rate in numerical models. Although CD has been shown to have a Reynolds-dependence, it is well known that Reynolds similitude cannot be held between model and prototype when Froude similitude is applied. This disparity raises a fundamental scaling issue to be explored in this paper: Are drag coefficients obtained by reduced-scale experiments of wave damping by vegetation suitable for engineering design?

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References

Kelty, Tomiczek, Cox, Lomonaco, Mitchel (2022) Prototype-scale physical model of wave attenuation through a mangrove forest of moderate cross-shore thickness: LiDAR-based characterization and Reynolds scaling for engineering with nature, Frontiers in Marine Science, doi.org/10.3389/fmars.2021.780946.

Mendez and Losada (2004). An empirical model to estimate the propagation of random breaking and nonbreaking waves over vegetation fields. Coastal Engineering doi: 10.1016/j.coastaleng.2003.11.003

This work is licensed under a Creative Commons Attribution 4.0 International License.

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ARE REDUCED-SCALE EXPERIMENTS OF WAVE DAMPING BY VEGETATION SUITABLE FOR ENGINEERING WITH NATURE?

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