A hierarchical parallel implementation model for algebra-based CFD simulations on hybrid supercomputers 

    Álvarez Farré, Xavier (Date of defense: 2022-09-05)

    (English) Continuous enhancement in hardware technologies enables scientific computing to advance incessantly and reach further aims. Since the start of the global race for exascale high-performance computing (HPC), ...

    A study of hybrid powertrains and predictive algorithms applied to energy management in refuse-collecting vehicles 

    Soriano Alfonso, Francisco (Date of defense: 2015-05-22)

    There is an increasing demand for vehicles with lower environmental impact and higher fuel efficiency. To meet these requirements, powertrain hybridization has been introduced in both academia and industry during recent ...

    Adaptive mesh refinement method for CFD applications 

    Antepara Zambrano, Oscar Luis (Date of defense: 2019-01-10)

    The main objective of this thesis is the development of an adaptive mesh refinement (AMR) algorithm for computational fluid dynamics simulations using hexahedral and tetrahedral meshes. This numerical methodology is applied ...

    Aerodynamic analysis of complex geometries using CFD 

    Aljure Osorio, David Eduardo (Date of defense: 2017-06-02)

    Aerodynamic analysis has become one of the most important tools in many engineering applications. In this sense, this thesis work is aimed at performing aerodynamic analysis of different geometries, expanding the available ...

    Analysis of night-time climate in plastic-covered grenhouses 

    Piscia, Davide (Date of defense: 2012-12-18)

    Este trabajo analiza el clima nocturno del invernadero. EL objeto del estudio es el invernadero de plástico sin calefacción, cuyo clima se estudia utilizando modelos CFD, modelos basados en los balance de energía (ES) y s ...

    Application of experimental and numerical methodologies for the development of an absortion heat pump for solar-driven systems 

    Zheng, Jian (Date of defense: 2023-05-11)

    (English) The topics explained in this thesis are organized in different chapters. A summary of the contents is given below: Chapter 2. Details of working pairs and properties with numerical modelling and experimental ...

    Computational modeling of adsorption packed bed reactors and solar-driven adsorption cooling systems 

    Papakokkinos, Giorgos (Date of defense: 2021-05-03)

    Environmental concerns regarding climate change and ozone depletion urge for a paradigm shift in the cooling production. The cooling demand exhibits an alarmingly increasing trend, thus its satisfaction in a sustainable ...

    Curat tèrmic i fotocurat de resines epoxi per al control químic de la contracció i millora de la degradabilitat 

    Fernández Francos, Xavier (Date of defense: 2009-07-10)

    S’ha estudiat la copolimerització de resines epoxi amb una spirobislactona com a comonòmer per tal de controlar la contracció química durant el curat i millorar la seva degradabilitat per tal d’afavorir la seva recuperació ...

    Developing numerical methods for fully-coupled nonlinear fluid-structure interaction problems 

    Naseri, Alireza (Date of defense: 2019-07-22)

    This thesis is dedicated to developing numerical methods to solve fluid-structure interaction (FSI) problems. FSI features in a vast range of physical systems and has a wide application in engineering. The work of this ...

    Development of a finite volume method for elastic materials and fluid-solid coupled applications 

    González Acedo, Ignacio (Date of defense: 2019-04-12)

    This thesis presents the development of a parallel finite volume numerical method to analyse thermoelastic and hyperelastic materials and applied problems with mutual interaction between a fluid and a structure. The ...

    Development of CFD-based multi-fidelity surrogate models for indoor environmental applications 

    Morozova, Nina (Date of defense: 2022-06-20)

    This thesis presents a methodology for CFD-based multi-fidelity surrogate models for indoor environmental applications. The main idea of this work is to develop a model that has accuracy comparable to CFD simulations but ...

    Development of experimental and numerical infrastructures for the study of compact heat exchangers and liquid overfeed refrigeration systems 

    Danov, Stoyan Viktorov (Date of defense: 2005-11-07)

    Se ha desarrollado y construido una infraestructura experimental orientada a la validación de modelos de intercambiadores compactos de aletas y tubos y sistemas de refrigeración con sobrealimentación de líquido. El objetivo ...

    Development of linear solvers for large-scale CFD simulations on hybrid supercomputers 

    Alsalti Baldellou, Àdel (Date of defense: 2023-12-18)

    (English) Divergence constraints are present in the governing equations of many physical phenomena, and they usually lead to a Poisson equation whose solution is one of the most challenging parts of scientific simulation ...

    Development of numerical codes for the evaluation of combustion processes. Detailed numerical simulations of laminar flames 

    Cònsul Serracanta, Ricard (Date of defense: 2002-09-27)

    Deep knowledge of combustion phenomenon is of great scientific and technological interest due to its presence in a wide range of industrial processes and equipment. Being the most important worldwide energy support provided ...

    Directrices energéticas integrales en edificios de oficinas transparentes (TOBEE) 

    Pascual Pellicer, Jordi (Date of defense: 2016-01-14)

    The main objective of this Thesis is to determine the behaviour, the energetic and economic feasibility, and the comfort conditions in office buildings, specifically for solutions with high proportions of glazing on facades ...

    DNS of multiphase flows: study of atomization and free-surface phenomena 

    Schillaci, Eugenio (Date of defense: 2017-12-11)

    The present thesis focuses on the numerical analysis of some diverse physical set-up that involve the interaction of two -or three immiscible and incompressible phases. The simulations are carried out by means of finite-volume ...

    Efficient CAD based adjoint optimization of turbomachinery using adaptive shape parameterization 

    Sanchez Torreguitart, Ismael (Date of defense: 2019-05-23)

    The present thesis incorporates the CAD model into an adjoint-based optimization loop and uses it for the shape optimization of a 2D transonic turbine blade mid-section (profile). This is demonstrated by performing a single ...

    Efficient wall modeling for large eddy simulations of general non-equilibrium wall-bounded flows 

    Calafell Sandiumenge, Joan (Date of defense: 2019-07-05)

    The main purpose of this thesis has been to contribute to the development of methodologies for wall modeling Large Eddy Simulations (LES) of wall-bounded flows, especially those at high Reynolds numbers. This flow configuration ...

    Energy efficient ventilation strategies for surgery rooms 

    Cubí Montanyà, Eduard (Date of defense: 2014-12-19)

    Surgery rooms are a space type with particularly stringent indoor environmental quality (IEQ) requirements, which translate into high energy use. Due to the unclear IEQ and infection control requirements for surgery rooms ...

    Estudio de la eficiencia de sistemas químicos del curado de resinas de poliéster insaturado 

    Ramis Juan, Xavier (Date of defense: 1994-01-13)

    Se ha estudiado la eficiencia de diferentes sistemas de iniciación química y térmica del curado de resinas de poliéster insaturado. Mediante calorimetría diferencial de barrido (DSC), se ha curado isotérmicamente y ...