Browsing by Author "Grau Barceló, Joan"
Now showing items 1-20 of 21
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Análisis multifractal de procesos autosimilares: imágenes de satélite e inestabilidades baroclinas
(Universitat Politècnica de Catalunya, 2008)
Article
Open AccessLa interacción entre escalas múltiples en distintos fenómenos naturales, sobre todo en flujos turbulentos, genera estructuras fractales. El análisis multifractal es una herramienta que nos permite evaluar cuantitativamente ... -
Aplicación del análisis fractal al estudio de las estructuras dinámicas de fluidos medioambientales
(Fundación para el Fomento de la Ingeniería del Agua, 2008-09)
Article
Open AccessLa aparición de múltiples escalas, que interactúan entre si en diversos fenómenos físicos medioambientales, especialmente cuando el régimen fluido es turbulento, exige métodos de análisis nuevos. El análisis multi-fractal ... -
Artificial compressibility method for high-pressure transcritical fluids at low Mach numbers
(Elsevier, 2024-02-15)
Article
Open AccessSupercritical fluids possess unique properties that makes them relevant in various scientific and engineering applications. However, the experimental investigation of these fluids is challenging due to the high pressures ... -
Describing ion transport and water splitting in an electrodialysis stack with bipolar membranes by a 2-D model: Experimental validation
(2022-07-30)
Article
Open AccessElectrodialysis with bipolar membranes (EDBM) has drawn attention motivated by their application in gener- ating reagents from salts. Due to the water splitting (WS) occurring at the junction of the bipolar membranes (BPMs), ... -
Effect of bacteria density and accumulated inert solids on the effluent pollutant concentrations predicted by the constructed wetlands model BIO_PORE
(2015-07-01)
Article
Open AccessConstructed wetlands are a widely adopted technology for the treatment of wastewater in small communities. The understanding of their internal functioning has increased at an unprecedented pace over recent years, in part ... -
Effect of biofilm formation on the aggregation of microplastics in upper-ocean turbulence
(2023)
Conference report
Open AccessThe impact of biofilm formation on marine microplastics in the upper layers of the ocean has been investigated using direct numerical simulations with an Eulerian-Lagrangian point-particle approach. The influence of biofilm ... -
Effect of metal hydride properties in hydrogen absorption through 2D-axisymmetric modeling and experimental testing in storage canisters
(2017-07-27)
Article
Open AccessA two-dimensional axisymmetric model is developed to study the hydrogen absorption reaction and resultant mass and heat transport phenomena inside a metal hydride canister. The model is compared against published literature ... -
Exploring the artificial compressibility method in high-pressure transcritical fluids
(International Centre for Numerical Methods in Engineering (CIMNE), 2023)
Conference report
Open AccessThis work presents the investigation of a solution to accelerate computations of high-pressure transcritical fluids at low-Mach number regimes based on the artificial compressibility method. The highly adaptable nature of ... -
FONAMENTS D'INFORMÀTICA (Q) (Examen Parcial)
(Universitat Politècnica de Catalunya, 1998-04-28)
Exam
Restricted access to the UPC academic community -
FONAMENTS D'INFORMÀTICA (Q) (Examen Parcial)
(Universitat Politècnica de Catalunya, 1998-04-30)
Exam
Restricted access to the UPC academic community -
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence
(Elsevier, 2024-11)
Article
Open AccessThe dynamics and aggregation of microplastics in marine environments are investigated through high-fidelity direct numerical simulations with Lagrangian point-particle tracking. The properties of microplastics and biogenic ... -
Laboratori remot d'experimentació en fenòmens oscil·latoris i ondulatoris, circuits i electrometria i en experimentació en electrotècnia
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2005-02)
Conference report
Open AccessEste proyecto es la continuación de dos proyectos anteriores: Laboratorio de experimentación remoto interactivo en física. Experiencia en oscilaciones y ondas. Laboratorio de experimentación remoto interactivo. Experiencias ... -
Mathematical modeling, numerical simulation and experimental comparison of the desorption process in a metal hydride hydrogen storage system
(2018-01-01)
Conference lecture
Open Access -
Microparticle dynamics in upper-ocean turbulence: dataset for analysis, modeling & prediction
(Elsevier, 2024-10)
Article
Open AccessPlastic particle pollution has threatened the well-being of seawater ecosystems over the past decades. Therefore, understanding, modeling and (potentially) predicting the dynamics of microplastics and biogenic particles ... -
Monitorització, via Internet, d'una estació de fabricació flexible electropneumàtica
(2005-02)
Conference report
Open AccessEl objetivo persigue la implementación de una arquitectura de telemonitorización de una célula de fabricación electroneumática del laboratorio de Mecánica de Fluidos y Termotecnia de la EUETIB. Se presentan las diferentes ... -
Multifractal observations of eddies, oil spills and natural slicks in the ocean surface
(2009-06-11)
Article
Restricted access - publisher's policyNatural and man-made distributions of tensioactive substance concentrations in the sea surface features exhibit self-similarity at all radar reflectivity levels when illuminated by SAR. This allows the investigation of the ... -
Near-interface flow modeling in large-eddy simulation of two-phase turbulence
(2020-11-11)
Article
Open AccessThe smallest hydrodynamic length scales in two-phase turbulence are located at the interface between phases, or fluids, as a result of two-way coupling phenomena. Typically, these interface-generated scales are several ... -
Relación de la nota de selectividad y la nota media del primer y segundo curso de los Grados de Energía y Mecánica de la EUETIB
(2018)
Conference lecture
Open AccessThis work explains te relationships between the final mark of the first and second courses of the Mechanical Engineering degree and Energy Engineering degree with the acces note of the EUETIB. El presente trabajo presenta ... -
SAR Analysis of the ocean surface : aplication to the NW mediterranean marine pollution and dynamic features
(Tempus Publications, 2009)
Conference report
Open AccessThe interaction between multiple scales in nature and mainly in turbulent flows produces fractals or multifractal structures. We use multi-fractal analysis to investigate the scales and influence of stratification in ... -
Suitability of immersed-boundary methods for high-fidelity computational aeroacoustics
(2023)
Conference report
Open AccessThis work presents a preliminary assessment of the suitability of the immersed boundary method (IBM) for high-fidelity direct sound computations. A ghost-cell IBM is implemented in conjunction with a recently developed ...
