Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015
Extreme Wave Runup in a Coastal Zone: Experimental and Numerical Modelling
Publication: Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
ABSTRACT
We present a series of complementary physical experiments and numerical model simulations based on a coupled Boussinesq-nonlinear shallow water equation scheme to investigate extreme wave runup on a plane beach. Extreme incident waves are modelled as focused wave groups using the NewWave design wave, and the maximum runup elevations generated by these focused waves are compared to the extreme runup elevations recorded during related irregular wave runup simulations. The maximum runup of a focused wave group exhibits strong dependence on the linear amplitude, focus location and phase at focus of the focused wave group. The extreme values of irregular wave runup in a random sea compare well to the runup values from equivalent incident focused wave groups with amplitudes set with Rayleigh statistics and optimised focus position and phase.
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ACKNOWLEDGEMENTS
This work was conducted within the ENFORCE (Extreme Responses using NewWave: Forces, Overtopping and Runup in Coastal Engineering) project, under EPSRC Grant EP/K024108/1. The assistance of Peter Arber and Alastair Reynolds with the physical experiments is greatly appreciated.
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Published In
Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
Pages: 754 - 762
Editors: Louise Wallendorf, U.S. Naval Academy and Daniel T. Cox, Ph.D., Oregon State University
ISBN (Online): 978-0-7844-8030-4
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© 2017 American Society of Civil Engineers.
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Published online: Jul 11, 2017
Published in print: Jul 11, 2017
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