Now showing items 1-16 of 16

• #### A Phase-field model based on a three-phase-lag heat conduction ﻿

(2011-02-01)
Article
Restricted access - publisher's policy
Our aim in this article is to study a phase-field system based on a three-phase-lag for the termal flux vector. In particular, we prove the existence and uniqueness of solutions and then study the spatial behavior of the ...
• #### Anàlisi experimental d'un sistema de climatització amb energia solar ﻿

(Universitat Politècnica de Catalunya, 2014-11)
Bachelor thesis
Open Access
Al llarg dels darrers anys les eines de computació han evolucionat a un ritme accelerat, posant a l’abast de qualsevol usuari un gran número de possibilitats per resoldre càlculs complexos d’instal·lacions senceres. És ...
• #### Conducción térmica no estacionaria en una placa circular con borde ligeramente perturbado ﻿

(Universitat Politècnica de Catalunya, 2004)
Article
Open Access
• #### Decay rates of Saint-Venant type for a functionally graded heat-conducting hollowed cylinder ﻿

(2019-05)
Article
Open Access
In this paper we consider the case of a functionally graded heat-conducting hollowed cylinder. Our purpose is to investigate the consequences of the material inhomogeneity on the decay of Saint-Venant end effects in the ...
• #### Develop algorithms for calculating the heat transfer and temperature in simple and small biogas digesters buried into the soil ﻿

(Universitat Politècnica de Catalunya, 2012)
Master thesis (pre-Bologna period)
Restricted access - author's decision
Biogas digesters are used to produce methane from anaerobic digestion of animal manure in long lot of developing countries to replace wood as the traditional source of fuel to produce energy for domestic purposes. A ...
• #### Estudio de fenómenos de transferencia de calor y dinámica de fluidos mediante los métodos de Lattice Boltzmann y volúmenes finitos ﻿

(Universitat Politècnica de Catalunya, 2012-09)
Master thesis (pre-Bologna period)
Open Access
El trabajo se divide en tres partes fundamentales. En la primera parte (capítulo 1) se tratan las ecuaciones que rigen la dinámica de fluidos, que son las de Navier- Stokes. Se presentan las adimensionalizaciones de las ...
• #### Heat transport with advection in fractured rock ﻿

(2019)
Conference report
Open Access
In the transport of heat in porous media, diffusion generally dominates over advection due to slow fluid velocities imposed by low permeability. This is the reason why standard Galerkin formulation leading to extra ...
• #### IMprove the thermal models in order to take into acount radiation and conduction and the influence of the temperature on the parameter variations ﻿

(Universitat Politècnica de Catalunya, 2011)
Master thesis (pre-Bologna period)
Restricted access - author's decision
This project has as objective to improve the thermal model of Majid Souley thesis based on Multi-coil heating technology, specifically, understand what is the result of changing the value of the coefficient of thermal ...
• #### Modelling of Multistream LNG Heat Exchangers ﻿

(Universitat Politècnica de Catalunya / Norges Teknisk-Naturvitenskapelige Universitet, 2010)
Master thesis (pre-Bologna period)
Restricted access - author's decision
The main goal of this thesis is to find out if a liquefied natural gas multistream heat exchanger numerical model is achievable. This should include several features usually neglected in nowadays available heat exchanger ...
• #### Numerical modelling and experimental validation in Selective Laser Melting ﻿

(2017-12)
Article
Open Access
In this work a finite-element framework for the numerical simulation of the heat transfer analysis of additive manufacturing processes by powder-bed technologies, such as Selective Laser Melting, is presented. These kind ...
• #### Numerical resolution of an exact heat conduction model with a delay term ﻿

(2019-02)
Article
Open Access
In this paper we analyze, from the numerical point of view, a dynamic thermoelastic problem. Here, the so-called exact heat conduction model with a delay term is used to obtain the heat evolution. Thus, the thermomechanical ...
• #### On the regularity and stability of the dual-phase-lag equation ﻿

(Elsevier, 2020-02)
Article
Restricted access - publisher's policy
In this note we consider the following linear partial different equation which is usually seen as an approximation to the dual-phase-lag heat equation proposed by Tzou.  \dot {T}+\tau_q \ddot {T}+\frac{\tau_{q}^{2}}{ ...
• #### Spatial behavior in high order partial differential equations ﻿

(2018-04)
Article
Open Access
In this paper we study the spatial behavior of solutions to the equations obtained by taking formal Taylor approximations to the heat conduction dual-phase-lag and three-phase-lag theories, reflecting Saint-Venant's ...
• #### Stabilized mixed finite element method for the M1 radiation model ﻿

(2018-06)
Article
Open Access
In this work, we present a computational approach for the numerical simulation of thermal radiation. Radiation is modeled by solving a set of two coupled partial differential equations, the so-called M1 model. A Variational ...
• #### Study for the numerical resolution of conservation equations of mass, momentum and energy ﻿

(Universitat Politècnica de Catalunya, 2016-01-20)
Master thesis
Restricted access - author's decision
• #### The use of heat transfer functions for heat flow computation through multilayer walls ﻿

(Universitat Politècnica de Catalunya, 2012)
Bachelor thesis
Open Access