No. 24 (1994), Conference Proceedings
No. 24 (1994)

IDENTIFICATION OF SOME RELEVANT PROCESSES IN COASTAL MORPHOLOGICAL MODELLING

Conference Proceedings
Published 1994-01-29
Hakeem Johnson
Danish Hydraulic Institute
I. Broker
Danish Hydraulic Institute
J.A. Zyserman
Danish Hydraulic Institute
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Keywords

coastal modeling
morphological modelling

How to Cite

IDENTIFICATION OF SOME RELEVANT PROCESSES IN COASTAL MORPHOLOGICAL MODELLING. (1994). Coastal Engineering Proceedings, 1(24). https://doi.org/10.9753/icce.v24.%p
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Abstract

This paper presents a coastal morphology modelling system based on an explicit forward time integration scheme for the morphological evolution involving the following stages: a) Initialisation, b) Sediment transport computation using a deterministic sediment transport model, c) Wave computation using an arbitrary wave model, d) Hydrodynamic computation assuming a mobile bed evolving at dzldi, with optional use of a module to determine the apparent roughness in combined wavecurrent motion and e) Bed level update scheme using an improved second order Lax Wendroff scheme. A series of numerical tests is performed with the aim of evaluating the effect of space-varying hydraulic roughness in combined waves and current, choice of wave modelling approach and of directionality of the waves on the morphological evolution. A detached breakwater is used as test case.
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