Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Koldo Portal Porras"'
Autor:
Vivekamanickam Koothan Venkateswaran, Unai Fernandez-Gamiz, Koldo Portal-Porras, Jesus Maria Blanco
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract This paper presents a computational fluid dynamics (CFD) analysis and blade element momentum (BEM) analysis of horizontal small-scale wind turbines under various parameters. Random airfoils such as the NACA 0012, NACA 0018, NACA 4412, S1016,
Externí odkaz:
https://doaj.org/article/8383b04d4fb44c9da1b64390a3815e9d
Autor:
Dmytro Redchyts, Unai Fernandez-Gamiz, Serhii Tarasov, Koldo Portal-Porras, Andrii Tarasov, Svitlana Moiseienko
Publikováno v:
Results in Engineering, Vol 24, Iss , Pp 103202- (2024)
Vertical-axis wind turbines (VAWT) with Darrieus and Savonius rotors were studied based on the developed specialized package of computational aerodynamics. The flow structure around the Savonius and Darrieus rotors was numerically reconstructed, cons
Externí odkaz:
https://doaj.org/article/3105e68bdb554ff187b886e8dadb0b32
Autor:
Koldo Portal-Porras, Unai Fernandez-Gamiz, Ekaitz Zulueta, Roberto Garcia-Fernandez, Xabier Uralde-Guinea
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 18, Iss 1 (2024)
The simplicity and accuracy of Computational Fluid Dynamics (CFD) tools have made them the most widely used method for solving fluid dynamics problems. However, these tools have some limitations, being the most significant the required computational
Externí odkaz:
https://doaj.org/article/3c8f86e2649941da993d3f2dd47caf54
Autor:
Oscar Irigaray, Zugatz Ansa, Unai Fernandez-Gamiz, Ander Larrinaga, Roberto García-Fernandez, Koldo Portal-Porras
Publikováno v:
Heliyon, Vol 10, Iss 11, Pp e31966- (2024)
Aerodynamics is one of the main areas of development in vehicle design. One of the most efficient ways of testing the aerodynamic design of a vehicle is to use Computational Fluid Dynamics (CFD), which allows for faster and more accurate aerodynamic
Externí odkaz:
https://doaj.org/article/69c5534b62314e7ab696f75bd99e4375
Autor:
Roberto Garcia-Fernandez, Koldo Portal-Porras, Oscar Irigaray, Zugatz Ansa, Unai Fernandez-Gamiz
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-16 (2023)
Abstract The aim of this article is to evaluate the ability of a convolutional neural network (CNN) to predict velocity and pressure aerodynamic fields in heavy vehicles. For training and testing the developed CNN, various CFD simulations of three di
Externí odkaz:
https://doaj.org/article/077f2d8aaea74e7d8ec102936c1f8b2f
Autor:
Ainara Ugarte-Anero, Unai Fernandez-Gamiz, Koldo Portal-Porras, Jose Manuel Lopez-Guede, Gaspar Sanchez-Merino
Publikováno v:
Heliyon, Vol 9, Iss 9, Pp e19961- (2023)
The air quality is a parameter to be controlled in order to live in a comfortable place. This paper analyzes the trajectory of aerosols exhaled into the environment in a classroom. Three scenarios are investigated; without ventilation, with natural a
Externí odkaz:
https://doaj.org/article/3aff1d3d3c584c6caa9c4f83209b8892
Autor:
Oskar Urbina-Garcia, Unai Fernandez-Gamiz, Ekaitz Zulueta, Ainara Ugarte-Anero, Koldo Portal-Porras
Publikováno v:
Buildings, Vol 14, Iss 4, p 1007 (2024)
The impact of the COVID-19 pandemic has caused an increase in knowledge in certain fields such as human breathing and respiratory diseases. In the current study, enclosed-space characteristics were assessed due to the great debate generated because o
Externí odkaz:
https://doaj.org/article/5e7fadcbe79647b8b80e7565dbf2d5fb
Autor:
Koldo Portal-Porras, Unai Fernandez-Gamiz, Ekaitz Zulueta, Alejandro Ballesteros-Coll, Asier Zulueta
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022)
Abstract Wind energy has become an important source of electricity generation, with the aim of achieving a cleaner and more sustainable energy model. However, wind turbine performance improvement is required to compete with conventional energy resour
Externí odkaz:
https://doaj.org/article/f123be3fbfb44bd8a5eb55889589d744
Autor:
Joseba Martínez-López, Koldo Portal-Porras, Unai Fernández-Gamiz, Eduardo Sánchez-Díez, Javier Olarte, Isak Jonsson
Publikováno v:
Batteries, Vol 10, Iss 1, p 23 (2024)
This article explores the novel application of a trained artificial neural network (ANN) in the prediction of vanadium redox flow battery behaviour and compares its performance with that of a two-dimensional numerical model. The aim is to evaluate th
Externí odkaz:
https://doaj.org/article/8224529809714accab8ee7362ecdbed2
Autor:
Ainara Ugarte-Anero, Unai Fernandez-Gamiz, Koldo Portal-Porras, Ekaitz Zulueta, Oskar Urbina-Garcia
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract The conduct of respiratory droplets is the basis of the study to reduce the spread of a virus in society. The pandemic suffered in early 2020 due to COVID-19 shows the lack of research on the evaporation and fate of droplets exhaled in the e
Externí odkaz:
https://doaj.org/article/6a94768b652d4bbc99f7d96f0575c1e8