Hybrid morphological modelling of shoreline response to a detached breakwater

Kristensen, Sten Esbjørn; Drønen, Nils; Deigaard, Rolf; Fredsøe, Jørgen

doi:10.1016/j.coastaleng.2012.06.005

Cited by 37 publications

(16 citation statements)

References 20 publications

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“…The above described sensitivity of salient shape to the distance between the OWF and the coastline agrees with accepted behaviour of salients located in the lee of shore parallel offshore breakwaters; see e.g. (Kristensen et al, 2013 ctly to eneral field. ctly in wind red in of the uld be of the to be over stance are a places in the North Sea the fetch could easily be 500 km or more.…”

Section: Shoreline Impactsupporting

confidence: 70%

Impact of an Offshore Wind Farm on Wave Conditions and Shoreline Development

Christensen¹,

Kristensen²,

Deigaard³

2014

Int. Conf. Coastal. Eng.

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The influence of offshore wind farms on the wave conditions and impact on shoreline development is studied in a generic set-up of a coast and a shoreline. The objective was to estimate the impact of a typical sized offshore wind farm on a shoreline in a high wave energetic environment. Especially the shoreline's sensitivity to the distance from the OWF to the shoreline was studied. The effect of the reduced wind speed inside and on the lee side of the offshore wind farm was incorporated in a parameterized way in a spectral wind wave model. The shoreline impact was studied with a one-line model.

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Section: Shoreline Impactsupporting

confidence: 70%

Impact of an Offshore Wind Farm on Wave Conditions and Shoreline Development

Christensen¹,

Kristensen²,

Deigaard³

2014

Int. Conf. Coastal. Eng.

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“…In this case, the equilibrium profile only shifts offshore or onshore depending on the overall sediment balance along the profile, similarly to a coastal profile model (e.g. Kriebel and Dean, 1985;Kristensen et al, 2013). As the sediment transport in the swash zone is usually neglected in large-scale 2DH models, this approach also has the advantage of updating the shoreline position.…”

Section: G Franz Et Al: Modelling Of Sediment Transport and Morpholmentioning

confidence: 99%

Modelling of sediment transport and morphological evolution under the combined action of waves and currents

Franz

Delpey²,

Brito³

et al. 2017

Ocean Sci.

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Abstract. Coastal defence structures are often constructed to prevent beach erosion. However, poorly designed structures may cause serious erosion problems in the downdrift direction. Morphological models are useful tools to predict such impacts and assess the efficiency of defence structures for different scenarios. Nevertheless, morphological modelling is still a topic under intense research effort. The processes simulated by a morphological model depend on model complexity. For instance, undertow currents are neglected in coastal area models (2DH), which is a limitation for simulating the evolution of beach profiles for long periods. Model limitations are generally overcome by predefining invariant equilibrium profiles that are allowed to shift offshore or onshore. A more flexible approach is described in this paper, which can be generalised to 3-D models. The present work is based on the coupling of the MOHID modelling system and the SWAN wave model. The impacts of different designs of detached breakwaters and groynes were simulated in a schematic beach configuration following a 2DH approach. The results of bathymetry evolution are in agreement with the patterns found in the literature for several existing structures. The model was also tested in a 3-D test case to simulate the formation of sandbars by undertow currents. The findings of this work confirmed the applicability of the MOHID modelling system to study sediment transport and morphological changes in coastal zones under the combined action of waves and currents. The same modelling methodology was applied to a coastal zone (Costa da Caparica) located at the mouth of a mesotidal estuary (Tagus Estuary, Portugal) to evaluate the hydrodynamics and sediment transport both in calm water conditions and during events of highly energetic waves. The MOHID code is available in the GitHub repository.

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“…Bu problem üç boyutlu bir model kullanılarak çözümlenebilmektedir [1][2][3][4][5][6][7]. Literatürde doğal veya insan kaynaklı etkenlere bağlı olarak oluşan aşınma problemini tanımlayabilmek amacıyla sediman taşınım modelleri çalışılmakta ve uygulanmaktadır [8][9][10]. Çalışılan modeller arasında en yaygın olarak uygulanan üç boyutlu modellerden öne çıkanlar CSTM-ROMS, Delft3D, ECOMSED ve MIKE21 olarak sıralanabilir [11].…”

Section: Gi̇ri̇ş (Introduction)unclassified

Alara, Türkiye denizel alanında sediman taşınımının modellenmesi

Genç¹

2016

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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Hybrid morphological modelling of shoreline response to a detached breakwater

Cited by 37 publications

References 20 publications

Impact of an Offshore Wind Farm on Wave Conditions and Shoreline Development

Impact of an Offshore Wind Farm on Wave Conditions and Shoreline Development

Modelling of sediment transport and morphological evolution under the combined action of waves and currents

Alara, Türkiye denizel alanında sediman taşınımının modellenmesi

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