H2020Индивидуална стипендия2019–2021

DURCWAVE · amending the Design criteria of URban defences in LECZs through Composite-modelling of WAVE overtopping under climate change scenarios

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2019-03-01 → 2021-04-04
Финансиране от ЕС: 170 122 €
Участници: 1
Схема: MSCA-IF-EF-ST

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Накратко на български

Градските крайбрежни защити се анализират чрез моделиране на преливането на вълните при различни климатични сценарии. Това помага за определяне на нови критерии за проектиране, за да се намалят щетите от наводнения в нископоставените зони.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

amending the Design criteria of URban defences in LECZs through Composite-modelling of WAVE overtopping under climate change scenarios

The IPCC Special Report on Ocean, Cryosphere in a Changing Climate states that global mean sea level will rise up to 1.1 m by the end of the century, exacerbated by the climate change. Hazards in coastal regions will increase depending on climate scenarios and significant changes in the coastal wave driven processes are expected. Major economic damages and loss of life are caused by waves that overtop and breach the coastal defences, as dramatically experienced during the last decades by the growing number of extra-tropical cyclones that led to more frequent and disastrous flooding events. Besides, while climate change increases the chances of disastrous events, population in coastal areas is expected to grow to nearly a billion people by 2060. Under the complexity of the coastal environment and the changing wave forcing, holistic approaches are required to characterise the impact of extreme wave conditions and the risk associated to flooding events in order to guide the upgrade of existing coastal defences toward low-impact but cost-effective solutions. The present project aims for a long term solution to cope with climate change and sea level rise in terms of requirements regarding coastal safety for low elevation coastal zones (LECZs). The project is focusing on coastal infrastructures in urban assets. Main goal is to contribute to the definition of new design criteria for wave action by modelling wave overtopping, which is the major cause of urban flooding in coastal areas. The main research findings are going to provide new insight to decision-makers for estimating the vulnerability of LECZs to climate change (societal aim). A set of specific scientific goals is defined within the project. 1. To study post-overtopping processes by characterising overtopping flows on urban defences and coastal infrastructures. 2. To explore the influence of structural geometries on post-overtopping processes. 3. To relate overtopping flow characteristics to maximum exerted wave actions. 4. To determine the most appropriate overtopping flow characteristics in terms of design purposes. 5. To develop and release (for public use) a unique numerical model technique to simulate phenomena of interaction between coastal structures and sea waves. To reach the scientific objectives, the project has employed both experimental and numerical modelling (i.e. composite modelling). On top, the Evolutionary Polynomial Regression data-driven technique was also used to find new correlations between wave impacts and overtopping flows.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The growth in coastal zone population increases the exposure of large numbers of people and assets to hazards related to climate change. Sea level rise and increased storminess represent major threats to coastal defences preventing the inundation of the hinterlands. This is true especially in low elevation coastal zones (LECZs). Understanding the mechanisms that govern the interaction between overtopping waves and coastal defences to changing climate conditions is of outmost importance to amend the current design criteria of coastal defences. The present project, named “DURCWAVE” (amending the Design criteria of URban defences in LECZs through Composite-modelling of WAVE overtopping under climate change scenarios), aims to identify new design criteria for wave action by modelling wave overtopping and post-overtopping processes of urban defences (storm walls, stilling wave basins, buildings along coastal boulevards). To reach these objectives the project will implement a composite-modelling approach, consisting of both physical and numerical modelling. Physical model tests will be carried out in two different wave flume facilities at the host organization (UPC), meanwhile the numerical modelling will be performed through the secondment at the partner organization (UVigo). The mesh-free DualSPHysics model will be used for the scope. The EPR data-driven technique will be used to find new correlations between wave impacts and overtopping flows. The Action will provide a methodology to help decision-makers to estimate the vulnerability of coastal zones to climate change, by assess the threats for sea frontages and buildings on the coastline. The project outcomes will trace the path at National and European levels for further extensions from urban defences in LECZs to all kind of coastal defences. Furthermore, a unique numerical model technique to simulate post-overtopping processes and estimate wave loadings on coastal defences will be release open-source for public use.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITAT POLITECNICA DE CATALUNYA · BARCELONAКоординаторИспания