Coupling Depth-Averaged and 3D numerical models to study debris flow: Saint-Vincent event
نویسندگان
چکیده
Debris flows are extremely rapid and unpredictable phenomena whose rheology is poorly understood. Moreover, human settlements often located in areas prone to debris flows. The combination of these features makes hazardous phenomena. Barriers usually installed flow paths mitigate risk. However, their design still based on empirical methods. In order base the barriers a more reliable approach, understanding must be improved. Continuum numerical models have proved helpful tool for studying particular, can predict speed depth paths, roughly estimate forces pressure acting mitigation structure. Currently, two main groups continuum available study (i) depth-averaged (DA) (ii) three-dimensional (3D) models. Although DA real-scale event, they may over-simplify flow-structure interaction. On other hand, 3D very interaction but whole phenomenon (from triggering deposition) would require enormous computational resources. This work aims show how coupling model allows an effective performing analysis dynamics. focused 2014 Saint-Vincent event (Aosta Valley, Italy).
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ژورنال
عنوان ژورنال: E3S web of conferences
سال: 2023
ISSN: ['2555-0403', '2267-1242']
DOI: https://doi.org/10.1051/e3sconf/202341502015