Examinar por departamento (eus.) "Ingeniaritza nuklearra eta jariakinen mekanika"
Now showing items 21-40 of 88
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Computational Modeling of Gurney Flaps and Microtabs by POD Method
(MDPI, 2018-08)Gurney flaps (GFs) and microtabs (MTs) are two of the most frequently used passive flow control devices on wind turbines. They are small tabs situated close to the airfoil trailing edge and normal to the surface. A study ... -
Computational Modelling of Rectangular Sub-Boundary Layer Vortex Generators
(MDPI, 2018-01-19)Vortex generators (VGs) are increasingly used in the wind turbine manufacture industry as flow control devices to improve rotor blade aerodynamic performance. Nevertheless, VGs may produce excess residual drag in some ... -
Computational Modelling of Three Different Sub-Boundary Layer Vortex Generators on a Flat Plate
(MDPI, 2018-11-10)Flow separation is the source of several problems in a wind turbine including load fluctuations, lift losses, and vibrations. Vortex generators (VGs) are passive flow control devices used to delay flow separation, but their ... -
Computational study of the vortex path variation with the VG height
(IOP Publishing, 2014)An extensive range of conventional, vane-type, passive vortex generators (VGs) are in use for successful applications of flow separation control. In most cases, the VG height is designed with the same thickness as the local ... -
¿Cómo afecta la introducción de las metodologías del Aprendizaje Cooperativo y del Aprendizaje Basado en Proyectos en la opinión de los/las estudiantes sobre su profesorado
(Universitat Politécnica de Valencia, 2013-07)[ES] En este artículo se presentan los resultados percibidos por los y las estudiantes derivados de la aplicación de metodologías del aprendizaje cooperativo y del aprendizaje basado en proyectos en varias asignaturas de ... -
Delamination Fracture Behavior of Unidirectional Carbon Reinforced Composites Applied to Wind Turbine Blades
(MDPI, 2021-01-27)One of the materials that is used widely for wind turbine blade manufacturing are fiber-reinforced composites. Although glass fiber reinforcement is the most used in wind turbine blades, the use of carbon fiber allows ... -
Differential Evolution Optimal Parameters Tuning with Artificial Neural Network
(MDPI, 2021-02-21)Differential evolution (DE) is a simple and efficient population-based stochastic algorithm for solving global numerical optimization problems. DE largely depends on algorithm parameter values and search strategy. Knowledge ... -
Downscaling of surface moisture flux and precipitation in the Ebro Valley (Spain) using analogues and analogues followed by random forests and multiple linear regression
(Copernicus Gesellschaft, 2011)In this paper, reanalysis fields from the ECMWF have been statistically downscaled to predict from large-scale atmospheric fields, surface moisture flux and daily precipitation at two observatories (Zaragoza and Tortosa, ... -
Dynamical Analysis of a Navigation Algorithm
(MDPI, 2021-12-02)There is presently a need for more robust navigation algorithms for autonomous industrial vehicles. These have reasonably guaranteed the adequate reliability of the navigation. In the current work, the stability of a ... -
Electricity production, capacity factor, and plant efficiency index at the Mutriku wave farm (2014–2016)
(Elsevier, 2018-01-01)Mutriku has recently become the first commercial wave farm to release its operating data. The plant has 14 OWC operating turbines, and this study has conducted an analysis of hourly data corresponding to the 2014–2016 ... -
Electroviscous Effect of Water-Base Nanofluid Flow between Two Parallel Disks with Suction/Injection Effect
(MDPI, 2022-03-17)This article, investigates the behaviour of an ionized nanoliquid motion regarding heat transmission between two parallel discs. In the proposed model, the squeezing flow of Cu-water nanofluid with electrical potential ... -
Estimating the Reattachment Length by Realizing a Comparison between URANS k-Omega SST and LES WALE Models on a Symmetric Geometry
(MDPI, 2021-07-24)In this study, a water reattachment length was calculated by adopting two different models. The first was based on Unsteady Reynolds-Averaged Navier–Stokes (URANS) k-omega with Shear Stress Transport (SST); the second was ... -
Evaluating Equity and Inclusion in Access toWater and Sanitation for Persons Living with HIV/AIDS in Wukro, Ethiopia
(MDPI, 2018-09)For more than a decade, foreign aid-supported water interventions focusing on an increase in household private connections have been implemented in the small urban center of Wukro. However, little has been investigated ... -
Evidence of dopant type-inversion and other radiation damage effects of the CDF silicon detectors
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2011-04-01)Se han estudiado los efectos producidos por la radiación sobre los detectores de silicio del experimento CDF, en particular el fenómeno de inversión del tipo de dopante y la evolución de las corrientes de polarización. -
Experimental Air Impingement Crossflow Comparison and Theoretical Application to Photovoltaic Efficiency Improvement
(MDPI, 2020-07-10)The photovoltaic cell temperature is a key factor in solar energy harvesting. Solar radiation raises temperature on the cell, lowering its peak efficiency. Air jet impingement is a high heat transfer rate system and has ... -
Experimental and Numerical Modeling of Aerosol Delivery for Preterm Infants
(MDPI, 2018-03)Respiratory distress syndrome (RDS) represents one of the major causes of mortality among preterm infants, and the best approach to treat it is an open research issue. The use of perfluorocarbons (PFC) along with non-invasive ... -
Experimental and numerical modeling of aerosol generation for the treatment of respiratory distress syndrome in preterm infants
(2019-12-17)En un nacimiento prematuro los bebés pueden presentar un déficit de surfactante pulmonar, siendo ésta la causa de la enfermedad conocida como Síndrome de Distrés Respiratorio (SDR). Una posible alternativa al tratamiento ... -
Experimental Evaluation of Perfluorocarbon Aerosol Generation with Two Novel Nebulizer Prototypes
(MDPI, 2019-01-05)The potential of non-invasive ventilation procedures and new minimally invasive techniques has resulted in the research of alternative approaches as the aerosolization for the treatment of respiratory distress syndrome ... -
Five MegawattWind Turbine Power Output Improvements by Passive Flow Control Devices
(MDPI, 2017-06)The effects of two types of flow control devices, vortex generators (VGs) and Gurney flaps (GFs), on the power output performance of a multi-megawatt horizontal axis wind turbine is presented. To that end, an improved blade ... -
Global estimations of wind energy potential considering seasonal air density changes
(Pergamon-Elsevier, 2019-11-15)The literature typically considers constant annual average air density when computing the wind energy potential of a given location. In this work, the recent reanalysis ERA5 is used to obtain global seasonal estimates of ...