H2020Индивидуална стипендия2017–2019

MAWAMOSCA · Mass-waste modelling across scales

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

Период: 2017-10-01 → 2019-11-30
Финансиране от ЕС: 178 157 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Движението на земни материали по склонове, като скални срутвания и лавини, се анализира чрез нови софтуерни модели с реалистични форми на частиците. Това помага за по-доброто разбиране на природните опасности и техния икономически ефект.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Mass-waste modelling across scales

Mass-wasting is the general term for the transfer of Earth material down hillslopes. Some examples are rockfalls, debris flows, ice avalanches or soil creep. Not only do such events sculpt the local topography but in many cases they pose as natural hazards, having significant economic impact or by seriously endangering human lives. Mass-waste events usually consist of 3 phases: a solid phase (a large number of solid particles), a liquid phase (usually water) and a gaseous phase. Capturing the exact properties of the solid phase is a very important task in a number of cases, as some specific properties of the dynamics of the mass movement can only then be understood, like segregation (when for example different sized particles wander to different parts of the flow, changing the movement dynamics). These properties are usually modeled by so called discreet element models (DiEM), that follow each particles trajectory individually. However these codes are usually written for spherical particles, while in real life most particle shapes are non-spherical. This has led to following project objectives: 1. Develop an efficient, open-source 3D discrete element model based software called: MWDiEM, that can model realistic particle shapes found in dry or mostly dry mass-waste events and make this code ready for application to real-world natural hazard events (within efficiency and model limitations). 2. Validate the developed code by comparing its results to laboratory experiments and real-world case studies. Connect MWDiEM with the two-phase continuum model based software r.avaflow in order to create a framework that makes modeling across scales possible. 3. Apply this framework along with experiments to investigate the importance of segregation on dry mass-flow dynamics and runout zone geometry. 4. Determine possible future fundamental research and development directions and engineering applications for both the framework and MWDiEM.

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

Цел на проекта

Mass-waste events not only cause geomorphological changes on our planet but they are often natural hazards, causing significant economic impact or seriously endangering human lives. Sufficiently understanding and predicting them is an important task both for the scientific community as well as to the decision-making bodies and community leaders all around the world. The importance of the topic is also emphasized in the EU Horizon 2020 third pillar ""Societal Challenges"". The aim of the current project is to design and develop a discrete element method (DiEM) based software package (called MWDiEM), that is able to model a number of dry (or with negligible fluid content) mass-waste events on the particle level. The code will handle cohesionless polyhedral and spherical particles and will be equipped with a number of features (e.g. GIS implementation, basal entrainment, GPU acceleration) that will allow for it to be used for real-life event simulations as well. By connecting MWDiEM to the already existing large scale two-phase continuum landslide model, r.avaflow, comparing the DiEM results to experiments and field observations and by using the DiEM code to understand the effect of shape and time-dependent size segregation on mass-flow, we hope to get a deeper understanding on mass-waste events, yielding better predictions in the future and bringing geoscientists and granular scientists together on the way.""

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITAT WIEN · WienКоординаторАвстрия