Ara mostrant els elements 1-19 de 19

    3D simulation of magneto-mechanical coupling in MRI scanners using high order FEM and POD 

    Seoane Chouciño, Marcos (Data de defensa: 2020-07-15)

    Magnetic Resonance Imaging (MRI) scanners have become an essential tool in the medical industry due to their ability to produce high resolution images of the human body. To generate an image of the body, MRI scanners combine ...

    Adaptive low and high-order hybridized methods for unsteady incompressible flow simulations 

    Karkoulias, Alexandros (Data de defensa: 2020-06-17)

    Simulations of incompressible flows are performed on a daily basis to solve problems of practical and industrial interest in several fields of engineering, including automotive, aeronautical, mechanical and biomedical ...

    Advanced physics-based and data-driven strategies 

    Ibáñez Pinillo, Rubén (Data de defensa: 2019-09-02)

    Simulation Based Engineering Science (SBES) has brought major improvements in optimization, control and inverse analysis, all leading to a deeper understanding in many processes occuring in the real world. These noticeable ...

    Comparison and coupling of continuous and hybridizable discontinuous Galerkin methods : application to multi-physics problems 

    Paipuri, Mahendra (Data de defensa: 2018-03-21)

    This thesis proposes a coupled continuous and hybridizable discontinuous Galerkin formulation to solve conjugate heat transfer problems. This model is then used to find the thermal response of Glass Fiber Reinforced Polymer ...

    Complexity reduction in parametric flow problems via Nonintrusive Proper Generalised Decomposition in OpenFOAM 

    Tsiolakis, Vasileios (Data de defensa: 2020-01-31)

    The present thesis explores the viability of the proper generalised decomposition (PGD) as a tool for parametric studies in a daily industrial environment. Starting from the equations modelling incompressible flows, the ...

    Computational uncertainity quantification in pressure-driven fracture processes 

    Garikapati, Hasini (Data de defensa: 2020-03-28)

    Uncertainty quantification is important in assessing and predicting the performance of complex engineering systems and processes, especially in the absence of adequate experimental or real-world data. With the increase ...

    Computational vademecums for lattice materials using algebraic PGD 

    Sibileau, Alberto Pedro (Data de defensa: 2019-09-24)

    This dissertation is motivated by the concept of materials by design. Focusing on structures, this states that the properties in a mechanical component are not only inherited by its constituent material, but also by the ...

    Efficient simulation tools for real-time monitoring and control using model order reduction and data-driven techniques 

    Quaranta, Giacomo (Data de defensa: 2019-09-02)

    Numerical simulation, the use of computers to run a program which implements a mathematical model for a physical system, is an important part of today technological world. It is required in many scientific and engineering ...

    Error estimation and adaptivity for PGD solutions 

    Reis, Jonatha Oliveira de Matos (Data de defensa: 2020-12-29)

    A significant part of the current research efforts in computational mechanics is focused on analyzing and handling large amounts of data, exploring high dimensional parametric spaces and providing answers to increasingly ...

    Extended hybridizable discontinuous Galerkin method 

    Gürkan, Ceren (Data de defensa: 2018-11-22)

    This thesis proposes a new numerical technique: the eXtended Hybridizable Discontinuous Galerkin (X-HDG) Method, to efficiently solve problems including moving boundaries and interfaces. It aims to outperform available ...

    Fast simulation : assisted shape correction after machining 

    Mena Andrade, Ramiro Francisco (Data de defensa: 2021-01-15)

    Computer simulation is acknowledged as the third branch of Science. From the seminal work of Turner et al. (1956) [on Finite Elements, impressive improvements have been made in terms of software and hardware, so that, ...

    High-fidelity surrogate models for parametric shape design in microfluidics 

    Borchini, Luca (Data de defensa: 2020-12-17)

    Nowadays, the main computational bottleneck in computer-assisted industrial design procedures is the necessity of testing multiple parameter settings for the same problem. Material properties, boundary conditions or ...

    Model order reduction of coupled thermo-hydro-mechanical processes in geo-environmental applications 

    Larion, Ygee (Data de defensa: 2022-02-01)

    In a large number of geo-environmental applications, it is essential to model coupled processes that depend on several design parameters such as material properties and geometrical features. Thermo-hydro-mechanical (THM) ...

    Proper generalized decomposition solutions for composite laminates parameterized with fibre orientations for fast computations 

    El-Ghamrawy, Karim (Data de defensa: 2021-04-23)

    Composite materials are gaining popularity as an alternative to classical materials in many different applications. Moreover, their design is even more flexible due to the potential of additive ...

    Randomized linear algebra for model order reduction 

    Balabanov, Oleg (Data de defensa: 2019-10-11)

    Solutions to high-dimensional parameter-dependent problems are in great demand in the contemporary applied science and engineering. The standard approximation methods for parametric equations can require computational ...

    Real-time solutions of parametric thermo-hydro-mechanical problems with proper generalized decomposition 

    Moaven, Arash (Data de defensa: 2023-07-04)

    (English) The Proper Generalized Decomposition (PGD) is a mathematical framework belonging to the Model Order Reduction (MOR) class of techniques. To the best of the author's knowledge, this methodology has not been applied ...

    Reduced order modeling for smart grids' simulation and optimization 

    Malik, Muhammad Haris (Data de defensa: 2017-02-28)

    This thesis presents the study of the model order reduction for power grids and transmission networks. The specific focus has been the transient dynamics. A mathematical viewpoint has been adopted for model reduction. Power ...

    Simulation tools for biomechanical applications with PGD-based reduced order models 

    Zou, Xi (Data de defensa: 2018-03-12)

    Numerical simulation tools are generally used in all modern engineering fields, especially those having difficulties in performing large number of practical experiments, such as biomechanics. Among the computational methods, ...

    An upwind cell centred finite volume method for large strain explicit solid dynamics in OpenFOAM 

    Haider, Jibran (Data de defensa: 2018-04-20)

    In practical engineering applications involving extremely complex geometries, meshing typically constitutes a large portion of the overall design and analysis time. In the computational mechanics community, the ability to ...