Programa de Doctorat en Enginyeria Civil: Envíos recientes
Mostrando ítems 81-100 de 172
A parallel algorithm for deformable contact problems
In the field of nonlinear computational solid mechanics, contact problems deal with the deformation of separate bodies which interact when they come in touch. Usually, these problems are formulated as constrained minimization ...
Previsión de precipitación a muy corto plazo combinando técnicas de extrapolación de datos radar y modelos meteorológicos
Rainfall nowcasting based on the extrapolation of most recent radar rainfall fields usually shows better skill than NWP models for short lead times, since it benefits from observations of the initial rainfall state. In ...
Development of mechanism-based models for resistance spot weld failure simulation of multi-material advanced high strength steel sheets
The automotive industry is constantly involved in the development of new projects aimed at reducing weight, fuel consumptions and costs while improving passengers¿ safety. In order to achieve these increasing demands, ...
Anàlisi quantitatiu de la velocitat dels vehicles a motor participants en atropellaments en zona urbana : modelització de la sensibilitat de la variable evitabilitat a les variacions de la velocitat específica del vehicle i de la velocitat màxima permesa de la via
Road traffic accidents lead to a number of significant problems, which are clearly reflected in the social costs (injuries, repercussions, deaths, etc.) and economic costs (prevention, healthcare, lost profits, etc.). This ...
Desarrollo de un modelo numérico 3D en elementos finitos para las ecuaciones de Navier-Stokes : aplicaciones oceanográficas
En esta tesis se ha desarrollado y validado un modelo tridimensional de circulación costera en elementos finitos capaz de simular una región limitada del océano. La escala de longitud de las aplicaciones pueden ser del ...
Nowcasting probabilísitico basado en observaciones de lluvia con radar meteorológico
The nowcasting of rainfall based on the extrapolation of the radar precipitation field is a common technique used in different operational and research centers. However, this deterministic forecasting technique is subject ...
Evaluación y análisis de sus propiedades de su durabilidad y de la aplicación de los morteros reciclados que utilizan materiales secundarios
In recent years the increase in waste generated by various sectors has caused problems of waste management that mostly have as final destination the landfills; however, this option it is unacceptable for the economic and ...
Ecotoxicological risk of pollutants in Iberian rivers
More than one-third of Earths available freshwater is used for anthropogenic purposes, which has led to its contamination by numerous chemical compounds. Their presence in the environment might have negative consequences ...
Experiments de flux i sedimentació de llim fi
Research on fine sediment transport (silt and clay) is less advanced than research on sand and gravel movement. Nevertheless, fine sediment can be the predominant fraction of the suspended load in some rivers, and its ...
Inundaciones urbanas : criterios de peligrosidad y evaluación del riesgo para peatones y vehículos
In this research work, an analysis is first undertaken on the hazard regarding people exposed to floods in urban areas. Several experiments with people were carried out in order to determine the stability limit to pedestrians, ...
Comparison of bus network structures versus urban dispersion : a monocentric analytical approach : evidences from Barcelona's bus network
This thesis discusses which transit network structure is the best option to serve urban mobility. As a consequence of the evolution of urban form, cities have undergone a dispersion process of their activities. This fact ...
Análisis resistente de estructuras de obra de fábrica mediante redes funiculares simuladas computacionalmente
Este trabajo tiene por objetivo desarrollar una estrategia orientada a resolver de forma computacional el equilibrio estático de las obras pétreas formadas por elementos unidimensionales empleando la analogía clásica de ...
Modelación hidrológica distribuida basada en esquemas de volúmenes finitos
Distributed hydrological modeling occurs as a historical consequence of the different developments and advances in conceptual hydrology, first, through deepening and adaptation of hydrology through aggregated methods, and ...
Phase field approach to fracture : massive parallelization and crack identification
The phase field method has proven to be an important tool in computational fracture mechanics in that it does not require complicated crack tracking and is able to predict crack nucleation and branching. However, the ...
Measuring impact loads on rigid coastal structures
The aim of this work is the study of laboratory effects on the measurement of wave impact induced loads on rigid maritime structures. A high number of experiments (more then 4000 using regular wave attacks) have been carried ...
Large scale finite element solvers for the large eddy simulation of incompressible turbulent flows
In this thesis we have developed a path towards large scale Finite Element simulations of turbulent incompressible flows. We have assessed the performance of residual-based variational multiscale (VMS) methods for the ...
Assessment of groundwater recharge in urban areas
In the city of Barcelona and the townships situated in the deltaic area of the Besòs River, groundwater is recognized as an aspect of urban water cycle management. There is groundwater seepage into infrastructure and ...
Submerged vanes turbulence : experimental analysis
Experimental study was conducted to analyze the physical flow turbulence and sediment distribution with submerged vane. The objectives behind the investigation were verified and compare results with the Odgaard theory, ...
Experimental and theoretical analysis of cracking in drying soils
The thesis focuses on the experimental and theoretical aspects of the process of cracking in drying soils. The results and conclusions were drawn from an exhaustive experimental campaign characterised by innovative ...
Methodology for optimal design of efficient air transport network in a competitive environment
This thesis aims to dissert about air transport network design taking into consideration the current needs about efficiency in a very competitive industry. The main focus for this work is the airline's point of view and ...
