FORMULATION AND VALIDATION OF VERTICALLY 2-D SHALLOW-WATER WAVE MODEL

Bradley D. Johnson; Nobuhisa Kobayashi; Daniel T. Cox

doi:10.9753/icce.v25.%p

No. 25 (1996), Conference Proceedings

No. 25 (1996)

FORMULATION AND VALIDATION OF VERTICALLY 2-D SHALLOW-WATER WAVE MODEL

Conference Proceedings

https://doi.org/10.9753/icce.v25.%25p

Published 1996-01-29

Bradley D. Johnson⁺⁻
Nobuhisa Kobayashi⁺⁻
Daniel T. Cox⁺⁻

Bradley D. Johnson

Center for Applied Coastal Research, University of Delaware

Nobuhisa Kobayashi

Center for Applied Coastal Research, University of Delaware

Daniel T. Cox

Department of Civil Engineering, Texas AfcM University

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Keywords

shallow water
2D model
wave model
model verification

How to Cite

Johnson, B. D., Kobayashi, N., & Cox, D. T. (1996). FORMULATION AND VALIDATION OF VERTICALLY 2-D SHALLOW-WATER WAVE MODEL. Coastal Engineering Proceedings, 1(25). https://doi.org/10.9753/icce.v25.%p

Abstract

A numerical model is developed to predict the time-dependent, two-dimensional velocity field under normally incident breaking waves on beaches and coastal structures. Use is made of the depth-integrated continuity and horizontal momentum equations, where the momentum equation includes the momentum flux correction due to the vertical variation of the horizontal velocity. The third equation for the momentum flux correction is derived from the depth-integrated wave energy equation together with a cubic horizontal velocity profile. The three equations are solved using the MacCormack finite difference method. The quasi two-dimensional model is compared with two laboratory data sets and is found to predict the vertical variation of the horizontal velocity measured below the trough reasonably well. However, the energy dissipation in the model is primarily numerical for breaking waves on gentle slopes despite the explicitly modeled energy dissipation due to wave breaking.

https://doi.org/10.9753/icce.v25.%25p

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Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

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FORMULATION AND VALIDATION OF VERTICALLY 2-D SHALLOW-WATER WAVE MODEL

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