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Now showing items 30593-30612 of 41815
Numerical investigation on applications simulated via using lattice Boltzmann method
The present doctoral thesis is about the numerical investigation simulated via using lattice Boltzmann method (LBM), the applications cover a large scale of subjects, including 1. Mathematical-physical equations A new ...
Numerical methods for radiative heat transfer
L'objectiu principal d'aquesta tesi es l'estudi de la transferència d'energia per radiació. Per aquest motiu, s'ha estudiat la fenomenologia bàsica de la transferencia de calor per radiació. Tenint en compte el tipus ...
Numerical modeling of anisotropic granular media
Granular materials are multi-particle systems involved in many industrial process and everyday life. The mechanical behavior of granular media such as sand, coffee beans, planetary rings and powders are current challenging ...
Numerical modeling of complex heat transfer phenomena in cooling applications
Multiphase and multicomponent flows are frequently encountered in the cooling applications due to combined heat transfer and phase change phenomena. Two-fluid and homogeneous mixture models are chosen to numerically study ...
Numerical modeling of continental collision and intraplate deformation. Application to the Cenozoic geodynamic evolution of North Iberia
This thesis aims at improving the current understanding of the geodynamic controls on tectonic deformation during plate collision, using the Cenozoic evolution of Iberia as a case scenario. Despite the vast efforts during ...
Numerical modeling of cracking along non-preestablished paths
The general objective of this thesis is the numerical representation of discrete cracks and their propagation using concepts of Configurational Mechanics, in such a way that their trajectory really corresponds to an energy ...
Numerical modeling of delayed and progressive failure in stiff clays with two-stage softening behaviour
Based on the laboratory, field and numerical results, the post-rupture strength defined firstly by Burland (1990) is verified and introduced in this thesis to describe the two-stage post-peak strain-softening characteristics ...
Numerical modeling of geological carbon sequestration : enhanced dissolution in randomly heterogeneous media
Geological Carbon Sequestration (GCS) plays a major role in mitigating the global warming due to the increasing concentration of CO2 in atmosphere. It is important to understand the GCS process to analyze and predict its ...
Numerical modeling of high aspect ratio fibers in fluid flows
Aquesta tesi utilitza un model de fibra a nivell de partícules per estudiar les suspensions de fibres en fluxos de fluids. En aquest model, cada fibra es representa com una cadena de segments cilíndrics connectats per ...
Numerical modeling of metal cutting processes using the Particle Finite Element Method
Metal cutting or machining is a process in which a thin layer or metal, the chip, is removed by a wedge-shaped tool from a large body. Cutting is a complex physical phenomena in which friction, adiabatic shear bands, ...
Numerical modeling of simple laboratory experiments of rotating flows
Despite the large amount of research which has been conducted on turbulent flows, a full understanding of their dynamics as well as the mechanisms involved in the onset of turbulence is still missing. Experimental studies ...
Numerical modeling of the underwater acoustic impact of offshore stations
The design of offshore power stations (for wind, wave or tidal energy generation) requires assessing their environmental impact. In particular, it is of the major importance to predict the impact of the generated subsea ...
Numerical modeling of transient multiphase thermo–mechanical problems: Application to the oceanic lithosphere
Los modelos numéricos son una herramienta muy útil a la hora de estudiar la geodinámica de gran escala, la interpretación entre litosfera y manto o entre distintas placas tectónicas. En este trabajo se desarrolla una nueva ...
Numerical modelling of nanoporous anodic alumina photonic structures for optical biosensing
Alguns materials mostren propietats físiques, òptiques i químiques particulars en la nanoescala. La nanotecnologia permet al científic millorar les seves propietats modificant l'estructura de la matèria en aquest nivell i ...
Numerical modelling based on the multiscale homogenization theory. Application in composite materials and structures
A multi-domain homogenization method is proposed and developed in this thesis based on a two-scale technique. The method is capable of analyzing composite structures with several periodic distributions by partitioning the ...
Numerical modelling of a parabolic trough solar collector
Concentrated Solar Power (CSP) technologies are gaining increasing interest in electricity generation due to the good potential for scaling up renewable energy at the utility level. Parabolic trough solar collector (PTC) ...
Numerical modelling of complex geomechanical problems
La tesis se centra en el desarrollo de técnicas numéricas específicas para la resolución de problemas de mecánica de sólidos, tomando como referencia aquellos que involucran geomateriales (suelos, rocas, materiales ...
Numerical modelling of constructed wetlands for wastewater treatment
Constructed Wetlands (CWs) are a wastewater treatment technology that inherits the purification potential of natural wetlands and optimizes it to comply with regulations for treated discharges. CWs have become an equally ...
Numerical modelling of microalgae systems for wastewater treatment
Reactions and processes that occur in microalgae and bacteria systems are difficult to understand because most of them take place simultaneously and depend on many parameters such as temperature, solar radiation, nutrients ...
Numerical modelling of the growth and remodelling phenomena in biological tissues
Living biological tissues are complex structures that have the capacity of evolving in response to external loads and environmental stimuli. The adequate modelling of soft biological tissue behaviour is a key issue in ...
