Proceedings of the International Conference on Coastal Engineering | |
IDENTIFICATION OF SOME RELEVANT PROCESSES IN COASTAL MORPHOLOGICAL MODELLING | |
J.A. Zyserman1  Hakeem Johnson1  I. Broker1  | |
[1] Danish Hydraulic Institute | |
关键词: coastal modeling; morphological modelling; | |
DOI : 10.9753/icce.v24.%p | |
学科分类:建筑学 | |
来源: Coastal Engineering Research Council | |
【 摘 要 】
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.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912020440991ZK.pdf | 267KB | download |