H2020Индивидуална стипендия2022–2025

DUNAMICS · Analysis and prediction of submarine dune dynamics

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

Период: 2022-04-01 → 2025-06-30
Финансиране от ЕС: 269 273 €
Участници: 2
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Подводните пясъчни дюни и тяхното движение се анализират чрез експерименти и компютърни модели, включително в водите на Нова Зеландия. Разбирането им помага за по-точно предвиждане на водните нива и скоростите на теченията, което е важно за морската навигация.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Analysis and prediction of submarine dune dynamics

Sand dunes pose a significant risk for offshore activities in coastal areas and for navigation along the most frequented maritime routes. The presence of sand dunes leads to a significant increase of the flow resistance, which needs to be carefully described for predicting flow velocities and water levels in forecast models. Understanding dune evolution is therefore an important issue to predict the flow circulation, sediment fluxes and bathymetric variations in sandy subaqueous environments. Nevertheless, their evolution is still poorly understood due to their complex behavior. The Marie Curie GF-DUNAMICS solved fundamental issues in our comprehension of submarine dunes and improved their predictability. First, dune equilibrium mechanisms were analyzed by integrating flume measurements and numerical modeling techniques. Then, an investigation of deep-water dune dynamics in the Queen Charlotte Sounds of New Zealand was performed. Finally, an operational model was improved to simulate dune evolution. The work carried out during the project allowed the following objectives to be achieved : to study experimentally and theoretically the equilibrium conditions of dunes; to study large submarine dunes through numerical modeling; and to improve a numerical model. The work also went beyond the objectives by investigating machine-learning algorithms to successfully predict dune dimensions at equilibrium.

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

Цел на проекта

Submarine dunes pose a significant risk for offshore activities in coastal areas, especially for the growing development of European renewable marine energy. Their evolution is still poorly understood due to their complex non-linear behavior. DUNAMICS propose to fill this knowledge gap by putting forward an innovative methodology combining several fields of investigation. DUNAMICS pursues three correlated research objectives: understand the physical process that leads to subaqueous dunes equilibrium and control their geometry, study in situ deep water dunes in coastal waters of New Zealand, and develop an operational tool for prediction of submarine dune dynamics. To achieve these goals, an innovative methodology has been thought of, leaning on state-of-the-art numerical models, innovative instrumentation methods, and cutting-edge laboratory flume experiments. DUNAMICS is a collaborative research project supported by a highly skilled and complementary international team. My experience in bedform morphodynamics, added to Giovanni Coco’s outstanding knowledge in sediment patterns and numerical modelling, Heide Friedrich’s great experience in conducting flume experimentations, and Rolf Deigaard world reckoned expertise in sediment transport problems, give DUNAMICS strong basis to achieve its goals. Moreover, our complementarity will lead to a continuous knowledge sharing process between us that will also be highly profitable for the beneficiary institution. The world class brand new infrastructures of the University of Auckland (UoA) -outgoing phase- and of the Danish hydraulic institute (DHI) -returning phase- insure an exciting collaborative and scientific environment. There, I will be encouraged to deliver outstanding research, improve my scientific and teaching skills, and reach a level of scientific excellence allowing me to pursue my academic career.

Оригинален текст от CORDIS (на английски).

Участници

DHI A/S · HoersholmКоординаторДания
THE UNIVERSITY OF AUCKLAND · AucklandНова Зеландия