Àrea de contingut
Universitat Politècnica de Catalunya
Browsing Programa de Doctorat en Enginyeria Civil by Subject "531/534"
Now showing items 1-17 of 17
A face-centred finite volume solver for viscous laminar incompressible flows using OpenFOAM
(English) Incompressible flow simulations are crucial for numerous scientific and engineering applications, from automotive aerodynamics to biomedical device design. Traditional finite volume (FV) methods, such as the ...
A novel arbitrary Lagrangian Eulerian framework for large strain solid dynamics
(English) In the realm of Computer-Aided Engineering applied to fast solid dynamics, the intricate mechanical behaviours exhibited by materials when subjected to strong dynamic forces, high speed impacts and complex ...
Aerodynamic shape optimization under uncertainties using embedded methods and adjoint techniques
(English) This thesis develops a framework to perform shape optimization under uncertainties for a body under the action of aerodynamic forces. The solution of the flow is performed with finite elements using the full ...
Efficient models for building acoustics : combining deterministic and statistical methods
Modelling vibroacoustic problems in the field of building design is a challenging problem due to the large size of the domains and the wide frequency range required by regulations. Standard numerical techniques, for instance ...
Finite element simulation of additive manufacturing with enhanced accuracy
This thesis develops numerical methods to improve the accuracy and computational efficiency of the part-scale simulation of Additive Manufacturing (AM) (or 3D printing) metal processes. AM is characterized by multiple ...
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 ...
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 ...
Mixed finite elements with independent strain interpolation for isotropic and orthotropic damage
The numerical modelling of fracture has been an active topic of research for over five decades. Most of the approaches employed rely on the use of the Finite Element Method, which has shown to be an effective and cost-efficient ...
On the mechanics of strain localization in plasticity : isotropic and orthotropic, cohesive and frictional, associated and non-associated models
In this thesis, two main topics have been covered: the mechanics of strain localization in plasticity and the performance of several mixed finite elements subjected to plastic strain localization. Throughout the thesis, ...
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 ...
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 ...
PIV applications in vortex rings and oscillatory boundary layers
Particle Image Velocimetry (PIV) is one of the most used experimental techniques in fluid mechanics to obtain the velocity field of a flow. One of its most celebrated characteristics is that it does not have interference ...
Shape dynamics and lipid hydrodynamics of bilayer membranes: modeling, simulation and experiments
Biological membranes are continuously brought out of equilibrium, as they shape organelles, package and transport cargo, or respond to external actions. The dynamics of lipid membranes are very complex due to the tight ...
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) ...
Towards stochastic methods in CFD for engineering applications
Recent developments of high performance computing capabilities allow solving modern science problems employing sophisticated computational techniques. However, it is necessary to ensure the efficiency of state of the art ...
Vibroacoustic coupling and transmission paths
This dissertation deals with four topics. The first three are in the same environment, the transmission paths. The fourth refers to the synthesis of subsystems and more specifically to two subsystems linked by any number ...
Wave propagation problems with aeroacoustic applications
The present work is a compilation of the research produced in the field of wave propagation modeling. It contains in-depth analysis of stability, convergence, dispersion and dissipation of spatial, temporal and spatial-temporal ...
