Programa de Doctorat en Enginyeria Civil: Envíos recientes
Mostrando ítems 61-80 de 179
Large-scale tree-based unfitted finite elements for metal additive manufacturing
This thesis addresses large-scale numerical simulations of partial differential equations posed on evolving geometries. Our target application is the simulation of metal additive manufacturing (or 3D printing) with powder-bed ...
Coastal risk forecast system : fostering proactive management at the Catalan coast
The action of sea storms is one of the most complex littoral processes with deep management implications. Along the Catalan shoreline which is about 700 km long, 190 km are subject to erosion and/or flooding. Around one ...
Finite calculus. A stabilized finite element method for solving the Navier-Stokes equations. Application to ocean turbulence
Ocean turbulence is a classic example of turbulent motion and observations of turbulence in the ocean lack in regions of complex topography since in-situ and experimental data are complicated to obtain. As a result, ocean ...
Innovative mathematical and numerical models for studying the deformation of shells during industrial forming processes with the Finite Element Method
The doctoral thesis "Innovative mathematical and numerical models for studying the deformation of shells during industrial forming processes with the Finite Element Method" aims to contribute to the development of finite ...
High-order hybridizable discontinuous Galerkin formulation and implicit Runge-Kutta schemes for multiphase flow through porous media
This dissertation presents high-order hybridisable discontinuous Galerkin (HDG) formulations coupled with implicit Runge-Kutta (RK) methods for the simulation of one-phase flow and two-phase flow problems. High-order-methods ...
Stabilized reduced order models for low speed flows
This thesis presents the a stabilized projection-based Reduced Order Model (ROM) formulation in low speed fluid flows using a Variational Multi-Scale (VMS) approach. To develop this formulation we use a Finite Element (FE) ...
Technical-economic analysis, modeling and optimization of floating offshore wind farms
The offshore wind sector has grown significantly during the last decades driven by the increasing demand for clean energy and to reach defined energy targets based on renewable energies. As the wind speeds tend to be faster ...
Hybrid CPU/GPU implementation for the FE2 multi-scale method for composite problems
This thesis aims to develop a High-Performance Computing implementation to solve large composite materials problems through the use of the FE2 multi-scale method. Previous works have not been able to scale the FE2 strategy ...
Modeling present and future freeway management strategies : variable speed limits, lane-changing and platooning of connected autonomous vehicles
Freeway traffic management is necessary to improve capacity and reduce congestion, especially in metropolitan freeways where the rush period lasts several hours per day. Traffic congestion implies delays and an increase ...
Decision analysis under uncertainity for sustainable development
Policy-making for sustainable development becomes more efficient when it is reliably backed by evidence-based decision analysis. Concretely, this is crucial in the planning of public services delivery. By translating "raw" ...
Monotonicity-preserving finite element methods for hyperbolic problems
This thesis covers the development of monotonicity preserving finite element methods for hyperbolic problems. In particular, scalar convection-diffusion and Euler equations are used as model problems for the discussion in ...
Identifying and managing hotspots to extreme events : application to NW Mediterranean conditions
The impact of coastal storms is one of the costliest forms of natural disaster, as it affects a particularly valuable fringe both from the socioeconomic and ecologic perspectives. In addition, storm-induced erosion and ...
Design of reliable schedules and control strategies for improving bus system performance
High-level service bus systems, even though in many different forms and local particularities, have been spread out around the globe over the last decades, driven by the administration and the transport authority, and in ...
Zero-thickness interface elements in petroleum geomechanics : sand production and hydraulic fracture
This thesis describes the extension of the Finite Element Method with zero-thickness interface elements (FEM+z) to 3D, large and complex problems in geomaterials, with special interest in petroleum geomechanics. This general ...
Experimental analysis of soil cracking due to environmental conditions
This thesis presents an experimental approach on the subject of cracking in soils due to changes in environmental conditions, where research is mainly directed to the soil-air interface and the effect of boundary conditions. ...
Robust structural damage detection by using statistical hybrid algorithms
This thesis presents the results of applying a statistical hybrid approach for structural health monitoring using piezo actuating signals. Where, by combining statistical processing based on Principal Component Analysis ...
Estudi de la dinàmica del transport de dilucions salines d'alta concentració en canonades a pressió
The mining area in the Bages district, in Catalonia (Spain), is located between the villages of Cardona, Súria, Sallent and Balsareny. It contains the most important salt deposit in Europe, which has been exploited since ...
Three-dimensional numerical analysis of flow structure and sediment transport process in open channels
This research project focuses on the analysis and prediction of flow structures and sediment transport process in open channels by using three-dimensional numerical models. The numerical study was performed using the ...
Laboratory experiments to evaluate the joint effect between heterogeneity and head fluctuation on mixing, effective porosity and tailing
Tracer visualization in the laboratory at high spatial and temporal resolution can help advance the study of mixing processes. However, grain borders, fluctuations in lighting and non-uniform brightness contribute to produce ...
Image processing and experimental techniques to characterize the hydraulic performance of grate inlets
This Doctoral Thesis dissertation concerns two main research topic: the analysis of the flow velocity pattern in the nearness of a grate inlet through Surface Flow Image Velocimetry (SFIV) technique and the study of overflow ...
