Departament de Màquines i Motors Tèrmics
Recent Submissions
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A hierarchical parallel implementation model for algebra-based CFD simulations on hybrid supercomputers
(Universitat Politècnica de Catalunya, 2022-09-05)
Doctoral thesis
Open Access(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), ... -
Development of CFD-based multi-fidelity surrogate models for indoor environmental applications
(Universitat Politècnica de Catalunya, 2022-06-20)
Doctoral thesis
Open AccessThis 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 ... -
Computational modeling of adsorption packed bed reactors and solar-driven adsorption cooling systems
(Universitat Politècnica de Catalunya, 2021-05-03)
Doctoral thesis
Open AccessEnvironmental 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 ... -
On the development of direct numerical simulations for falling films
(Universitat Politècnica de Catalunya, 2021-01-07)
Doctoral thesis
Open AccessMultiphase flows present a rich variety of physical instabilities, which may turn into a set of interesting techonological features. In the particular case of vertical fallings films, these features provide with short ... -
A new grey area mitigation technique for DES : theory and assessment
(Universitat Politècnica de Catalunya, 2020-12-17)
Doctoral thesis
Open AccessThe use of hybrid RANS-LES methods has become widespread during the last decade, as an interesting approach for covering the gap between RANS and LES turbulence models in terms of both computational resources and degree ... -
Developing numerical methods for fully-coupled nonlinear fluid-structure interaction problems
(Universitat Politècnica de Catalunya, 2019-07-22)
Doctoral thesis
Open AccessThis 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 ... -
Numerical simulation of Newtonian/non-Newtonian multiphase flows : deformation and collision of droplets
(Universitat Politècnica de Catalunya, 2019-07-24)
Doctoral thesis
Open AccessThe complex nature of multiphase flows, particularly in the presence of non-Newtonian rheologies in the phases, limits the applicability of theoretical analysis of physical equations as well as setting up laboratory ... -
Efficient wall modeling for large eddy simulations of general non-equilibrium wall-bounded flows
(Universitat Politècnica de Catalunya, 2019-07-05)
Doctoral thesis
Open AccessThe 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 ... -
Development of a finite volume method for elastic materials and fluid-solid coupled applications
(Universitat Politècnica de Catalunya, 2019-04-12)
Doctoral thesis
Open AccessThis 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 ... -
Efficient CAD based adjoint optimization of turbomachinery using adaptive shape parameterization
(Universitat Politècnica de Catalunya, 2019-05-23)
Doctoral thesis
Open AccessThe 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 ... -
On the numerical simulation of compressible flows
(Universitat Politècnica de Catalunya, 2019-05-23)
Doctoral thesis
Open AccessIn this thesis, numerical tools to simulate compressible flows in a wide range of situations are presented. It is intended to represent a step forward in the scientific research of the numerical simulation of compressible ... -
Filtering in the numerical simulation of turbulent compressible flow with sysmmetry preserving discretizations
(Universitat Politècnica de Catalunya, 2019-01-10)
Doctoral thesis
Open AccessThe present thesis investigates how explicit filters can be useful in numerical simulations of turbulent, compressible flow with symmetry preserving discretizations. Such explicit filters provide stability to simulations ...
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