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Now showing items 30638-30657 of 41835
Numerical simulation of fluid dynamics and transport phenomena in electrostatically charged volatile sprays
Els electrosprays estan constituïts de microgotes amb alta càrrega elèctrica i en moviment sota l'acció de forces electrostàtiques. Les gotes es generen com a resultat de la ruptura d'un doll de líquid sotmès a un camp ...
Numerical simulation of frost growth and densification using deformable and static grids
The present thesis aims at developing a basis for the numerical simulation of the growth and densification of macroscopic frost sheets. Notwithstanding the fact that icing has still a long way to fully understand its ...
Numerical simulation of multi-fluid flows with the Particle Finite Element Method
La presencia simultánea de múltiples fluidos con diferentes propiedades ocurre en numerosos problemas medioambientales, procesos industriales y situaciones de la vida diaria. Algunos ejemplos son la interacción fluido-combustible ...
Numerical simulation of multiphase flows : level-set techniques
This thesis aims at developing numerical methods based on level-set techniques suitable for the direct numerical simulation (DNS) of free surface and interfacial flows, in order to be used on basic research and industrial ...
Numerical simulation of multiphase immiscible flow on unstructured meshes
The present thesis aims at developing a basis for the numerical simulation of multiphase flows of immiscible fluids. This approach, although limited by the computational power of the present computers, is potentially very ...
Numerical simulation of Newtonian/non-Newtonian multiphase flows : deformation and collision of droplets
The 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 ...
Numerical Simulation of Non-premixed Laminar and Turbulent Flames by means of Flamelet Modelling Approaches
Deep knowledge of combustion phenomena is of great scientific and technological interest. In fact, better design of combustion equipments (furnaces, boilers, engines, etc) can contribute both in the energy efficiency and ...
Numerical simulation of oil spills in coastal areas using shallow water equations in generalised coordinates
The pollution generated by accidental marine oil spills can cause persistent ecological disasters and lead to serious social and economical damages. Numerical simulations are a valuable tool to make proper decisions in ...
Numerical simulation of sensible and latent thermal energy storage systems
El objetivo principal de esta tesis es la resolución numérica de problemas de transferencia de calor y dinámica de fluidos y su aplicación para el estudio del comportamiento transitorio de sistemas térmicos de acumulación ...
Numerical simulation of shallow water equations and some physical models in image processing
There are two main subjects in this thesis: the first one deals with the numerical simulation of shallow water equations, the other one is the resolution of some problems in image processing<br/><br/>The first part of this ...
Numerical simulation of the thermal and fluid dynamics behaviour of liquid-vapour two-phase flow in evaporators and condensers
Un estudio numérico del comportamiento térmico y fluido-dinámico de flujos bifásicos, liquido-gas, en conductos es presentado. El análisis numérico es basado en dos diferentes modelos. El primer modelo es conocido como ...
Numerical simulation of turbulent diffusion flames using flamelet models on unstructured meshes
The present thesis aims at developing numerical methods and algorithms for the efficient simulation of diffusion flames in the flamelet regime. To tackle turbulent chemically reacting flows a double framework is used in ...
Numerical Simulation of Turbulent Flows. Multiblock Techniques. Verification and Experimental Validation
Work here presented is the result of basic research in key aspects of the currently available engineering tools and methodologies for the design, optimisation and development of thermal systems and equipment: turbulence ...
Numerical simulations of particle turbulent dispersion and deposition with implications for the spreading of airborne diseases
Aquesta tesi doctoral examina la dinàmica de partícules en fluxos turbulents mitjançant simulacions numèriques, enfocant-se en dos escenaris clau: els fluxos generats per l'exhalació i els impulsats per flotabilitat en ...
Numerical simulations of primordial black holes
This thesis has been devoted to the study of the gravitational collapse of spherically symmetric perturbations on a Friedman-Robertson-Walker (FRW) universe filled by a perfect fluid. Large cosmological perturbations ...
Numerical simulations of the DCMIX microgravity thermodiffusion experiments to assess the impact of typical International Space Station reboosting manoeuvres
En aquesta tesi s'ha analitzat l'impacte que les maniobres vehiculars impulsives (reboostings) de l'Estació Espacial Internacional (ISS) tenen sobre els experiments de la sèrie DCMIX. En primer lloc, l'entorn microgravitatorio ...
Numerical simulations of thermal storage systems : emphasis on latent energy storage using phase change materials (PCM)
The present thesis aims at studying the use of phase change materials (PCM) in thermal energy storage (TES) applications and to develop and implement numerical tools for their evaluation. Numerical analysis is nowadays an ...
Numerical solution of 3-D electromagnetic problems in exploration geophysics and its implementation on massively parallel computers
The growing significance, technical development and employment of electromagnetic (EM) methods in exploration geophysics have led to the increasing need for reliable and fast techniques of interpretation of 3-D EM data ...
Numerical study and experimental optimization of air curtains
he main objective of the present thesis is to study and optimize the sealing efficiency of air curtains. Therefore, the phenomenology of the breakthrough and the parameters which affect it has been studied. However, ...
Numerical study of bio-fluids and mass transfer processes through membranes
La reologia de la sang (hemoreología) exerceix un ppel important en la perforació de teixits i l'alteració de les seves condicions fisiològiques és gairebé sempre la principal causa de patologies cardiovasculars. Per tant, ...
