Exploració per tema "Numerical simulations"
Ara es mostren els items 1-20 de 39
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A fully discrete approximation of a new two-temperature thermoelastic model
(Taylor & Francis Group, 2023-07)
Article
Accés restringit per política de l'editorialIn this work, we study a new thermoelastic model with two temperatures from the numerical point of view. The problem is written as a coupled linear system whose unknowns are the displacement field and the conductivity and ... -
A problem with viscoelastic mixtures: numerical analysis and computational experiments
(2021)
Article
Accés obertIn this paper, we study, from the numerical point of view, a dynamic problem involving a mixture of two viscoelastic solids. The mechanical problem is written as a system of two coupled partial differential equations. Its ... -
A strain gradient problem with a fourth-order thermal law
(2024-08-01)
Article
Accés obertIn this paper, a strain gradient thermoelastic problem is studied from the numerical point of view. The heat conduction is modeled by using the type II thermal law and the second gradient of the thermal displacement is ... -
A type III thermoelastic problem with mixtures
(2021-06)
Article
Accés obertIn this work we study a thermoelastic problem involving binary mixtures. Type III thermal theory is considered for the modeling of the heat conduction. Existence, uniqueness and continuous dependence of solutions are proved ... -
Adjoint-based PDE-constrained optimization using HPC techniques
(Universitat Politècnica de Catalunya, 2013-10-02)
Projecte Final de Màster Oficial
Accés obertThis work focuses in the utilization of current HPC technologies to explore mathematical optimization algorithms in which a PDE acts as main constraint. A development framework is proposed, together with a novel application ... -
An a priori error analysis of a type III thermoelastic problem with two porosities
(2023-03)
Article
Accés obertIn this work, we study, from the numerical point of view, a type III thermoelastic model with double porosity. The thermomechanical problem is written as a linear system composed of hyperbolic partial differential equations ... -
Analysis of two thermoelastic problems with the Green–Lindsay model
(Springer, 2023-06-01)
Article
Accés obertIn this paper, we analyze, from the numerical point of view, two thermo-elastic problems involving the Green–Lindsay theory. The coupling term is different for each case, involving second order or first order spatial ... -
Analytic stability maps of unknown exoplanet companions for imaging prioritization
(Universitat Politècnica de Catalunya, 2019-07-12)
Treball Final de Grau
Accés obert
Realitzat a/amb: Cornell UniversityIdentifying which systems are more likely to host an imageable planet can play an important role in the construction of an optimized target list for future direct imaging missions, such as the planned technology demonstration ... -
Assessment of tabulated chemistry models for the les of a model aero-engine combustor
(Global Power and Propulsion Society (GPPS), 2022)
Comunicació de congrés
Accés obertTabulated chemistry methods present a compromise between computational cost and the ability to capture complex combustion physics in high-fidelity numerical simulations. The application of such models entails a number of ... -
Boundary layer flow control using synthetic jets on the flow over a NACA 0012 airfoil
(2017)
Text en actes de congrés
Accés restringit per política de l'editorialNumerical simulations of the flow control using a synthetic jet are presented. The flow considered is around a NACA 0012 airfoil at Re = 5000 and the actuator is located at 6% of the chord from the leading edge. This work ... -
CFD study of the influence of mountain and valley shapes on wind propagation
(Universitat Politècnica de Catalunya, 2019-07-11)
Treball Final de Grau
Accés obertIn the following work an aerodynamic study is explained, which consists in seeing the influence of the earth’s surface on the wind propagation. Specifically in plains, uphill and downhill slopes, basic geometries ... -
CFD study of two-phase flows in hypergravity conditions with OpenFOAM
(Universitat Politècnica de Catalunya, 2019-07-11)
Treball Final de Grau
Accés obertAvui en dia ens trobem a l’epoca m ` es important de l’espai i de l’aire, lo qual ha portat a ´ que la tecnologia s’hagi vist obligada a desenvolupar-se fins al punt de poder ser utilitzada en condicions gravitacionals que ... -
Contributions to the simulation of salt concrete - Short- and long-term mechanical behavior description involving an advanced plasticity model approach
(Universitat Politècnica de Catalunya, 2017-01-23)
Projecte Final de Màster Oficial
Accés obertIn the former German concept, rock salt was the favorite host rock to dispose heat-generating radioactive waste. To assure the integrity of the complete repository system after closure, shafts and drifts have to be sealed. ... -
Controlador neuronal para el seguimiento de trayectorias en un péndulo de rueda inercial
(Universitat Politècnica de Catalunya. CIMNE, 2016)
Article
Accés obertEn este trabajo de investigación, se estudia el problema de control de seguimiento de trayectorias en un péndulo de rueda inercial. Los resultados son presentados de una forma constructiva. Primero, se obtiene un controlador ... -
Data-driven model of endogenous and exogenous electric fields modulation of cerebral cortex activity
(Universitat Politècnica de Catalunya, 2021-07)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat
Realitzat a/amb: Centre national de la recherche scientifique / Institut d'Investigacions Biomèdiques August Pi i SunyerThis work aims to introduce and study a mathematical model of the brain cortex, that shows the oscillation(synchronisation) behaviour of the brain via the influence of internal (endogenous) and external (exogenous)electric ... -
Homogeneity and symmetry in DEM models of cone penetration
(American Institute of Physics (AIP), 2009)
Text en actes de congrés
Accés restringit per política de l'editorialA three—dimensional numerical model was implemented to PFC3D Code to simulate cone penetration test in Ticino sand in a calibration chamber. The model is calibrated using laboratory test results. The full/half/quarter ... -
HPC geophysical electromagnetics: a synthetic VTI model with complex bathymetry
(2022-02-10)
Article
Accés obertWe introduce a new synthetic marine model for 3D controlled-source electromagnetic method (CSEM) surveys. The proposed model includes relevant features for the electromagnetic geophysical community such as large conductivity ... -
Impacto de maremotos en la costa catalana
(Universitat Politècnica de Catalunya, 2015-06-17)
Treball Final de Grau
Accés obert -
Influence of axial air injection on the flame stability of a technically premixed hydrogen flame
(Global Power and Propulsion Society (GPPS), 2022)
Text en actes de congrés
Accés obertThis work is a numerical investigation on the stability of a hydrogen flame in a swirl-stabilized burner configuration using large-eddy simulation with tabulated chemistry. Experimental results from this combustor showed ... -
Modeling active fault systems and seismic events by using a fiber bundle model – example case: the Northridge aftershock sequence
(Copernicus Publications, 2019)
Article
Accés obertEarthquake aftershocks display spatiotemporal correlations arising from their self-organized critical behavior. Dynamic deterministic modeling of aftershock series is challenging to carry out due to both the physical ...