Listar por autor "Álvarez Naveira, Antonio José"
Mostrando ítems 1-16 de 16
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3D LES simulations of a static and vertically free-to-oscillate 4:1 rectangular cylinder: effects of the grid resolution
Álvarez Naveira, Antonio José; Nieto Mouronte, Félix; Nguyen, D.T.; Owen, J.S.; Hernández, Santiago (Elsevier, 2019)[Abstract:] In the present study, the aerodynamics of the flow fields around a static and vertically free-to-oscillate 4:1 rectangular cylinder are analysed by means of 3D LES simulations, adopting the OneEqEddy viscosity ... -
A Computational Study on the Aerodynamics of a Twin-Box Bridge With a Focus on the Spanwise Features
Álvarez Naveira, Antonio José; Nieto Mouronte, Félix; Kwok, Kenny; Hernández, Santiago (Elsevier, 2021)[Abstract] The wind flow around twin-box decks is particularly complex due to the very important role played by the slot distance between girders and the presence of the downwind box that is immersed in the wake of the ... -
A simplified CFD approach for bluff-body aerodynamics under small scale free stream turbulent flow
Álvarez Naveira, Antonio José; Nieto Mouronte, Félix; Kwok, Kenny; Hernández, Santiago (Elsevier, 2023)[Abstract:] The study of free stream turbulence (FST) effects on bluff bodies by means of computational approaches has been addressed so far mainly applying scale resolving methods adopting a three-dimensional domain, which ... -
Aerodynamic performance of twin-box decks: a parametric study on gap width effects based on validated 2D URANS simulations
Álvarez Naveira, Antonio José; Nieto Mouronte, Félix; Kwok, Kenny; Hernández, Santiago (Elsevier, 2018)[Abstract:] 2D URANS simulations are conducted aiming to study the aerodynamic performance under smooth flow of twin-box decks depending on the gap distance between girders. The Stonecutters Bridge is taken as the reference ... -
Assessment of the Aerodynamic and Aeroelastic Performance of Long-Span Twin-Box Bridges Based upon Multidimensional Surrogate Models
Badhurshah, Rameez; Álvarez Naveira, Antonio José; Nieto Mouronte, Félix; Jurado, José Ángel; Hernández, Santiago (MDPI, 2024)[Abstract:] Twin-box decks are being extensively used in the design of long-span bridges due to their superior flutter performance. Although the significant role played by the gap distance has been previously addressed in ... -
CFD Applications in Long-span Bridges: An Erasmus+ Traineeship International Mobility Experience
Nieto Mouronte, Félix; Álvarez Naveira, Antonio José (REDINE, Red de Investigación e Innovación Educativa, 2021)[Abstract:] An international mobility experience framed within the Erasmus+ Traineeship programme is reported. The topic of the traineeship is related with Computer Science and Engineering, more specifically, CFD applications ... -
Experimental and Computational Studies on the Performance of Solar Trackers Under Vortex Shedding, Torsional Divergence, and Flutter
Quintela Suárez, Juan; Jurado, José Ángel; Rapela Ponte, Carlos; Álvarez Naveira, Antonio José; Roca Rodríguez, Miguel; Hernández, Santiago; Cid Montoya, Miguel; López Rodríguez, Juan María; Ruiz Moreno, Antonio Jesús; Moreno Echarri, Itxaso; Jiménez Romero, Sergio (WIT Press, 2020)[Abstract] The current development of renewable energies has originated a number of new structural typologies that are the physical support of the energy production systems. Photovoltaic energy is a very mature source and ... -
Inclusion of Mechanical Dampers in the Multimodal Flutter Analysis of Slender Structures
Quintela Suárez, Juan; Jurado, José Ángel; Rapela Ponte, Carlos; Álvarez Naveira, Antonio José; Hernández, Santiago (WIT Press, 2020)[Abstract] Sometimes slender structures are reinforced with mechanical dampers to reduce the vibrations caused by aeroelastic phenomena like flutter. However the formulation of flutter analysis only considers the classical ... -
Numerical simulations of the aerodynamic response of 2D circular segments by means of URANS
Nieto Mouronte, Félix; Cid Montoya, Miguel; Álvarez Naveira, Antonio José; Hernández, Santiago; Jurado, José Ángel (WIT Press, 2016)[Abstract:] In the wind engineering field, the so-called D-section (semi-circular cylinder) has attracted some attention from researchers, since it is a galloping prone geometry. In fact, a modest number of references where ... -
Numerical simulations of the aerodynamic response of circular segments with different corner angles by means of 2D URANS. Impact of turbulence modeling approaches
Cid Montoya, Miguel; Nieto Mouronte, Félix; Álvarez Naveira, Antonio José; Hernández, Santiago; Jurado, José Ángel; Sánchez, R. (Taylor & Francis, 2018)[Abstract:] This paper presents the results of numerical and experimental investigations on the force coefficients and Strouhal numbers of circular segments considering different corner angles or chord to sagitta ratios. ... -
Semi-automated setup of CFD simulations of rectangular cylinders and streamlined box decks
Nieto Mouronte, Félix; Álvarez Naveira, Antonio José; Hernández, Santiago; Troche, Antía (WIT Press, 2020)[Abstract:] A piece of software that acts as a Graphical User Interface (GUI) for the setup of computational fluid dynamics (CFD) models that are solved by means of the open source code OpenFOAM, is presented. The software ... -
Simulation of vortex shedding and vortex induced vibrations in multibox bridge decks using CFD
Álvarez Naveira, Antonio José (2019)[Abstract] In long-span bridge engineering the designer must consider a wide range of economical, environmental and structural aspects in order to obtain a safe, and economical prototype that fulfils the design constraints ... -
Square Cylinder Under Different Turbulent Intensity Conditions by Means of Small-Scale Turbulence
Álvarez Naveira, Antonio José; Nieto Mouronte, Félix; Kwok, Kenny; Hernández, Santiago (WIT Press, 2021)[Abstract] The phenomenon of turbulence is present in almost every type of flow in practical applications. Depending on its level of intensity and length scale, it can modify both the aerodynamic and aeroelastic performance ... -
Study of a static and vertically free-to-oscillate 4:1 rectangular cylinder by means of 2D URANS simulations
Álvarez Naveira, Antonio José; Nieto Mouronte, Félix; Hernández, Santiago (WIT Press, 2018)[Abstract:] Flexible structures, such as cable-supported bridges, are prone to suffer from vortex-induced vibrations (VIV) under wind flow, as their span lengths are steadily growing in the last decades. VIV is a phenomenon ... -
Verification Approaches for the 3D Static LES Simulations of the Stonecutters Bridge Deck
Álvarez Naveira, Antonio José; Nieto Mouronte, Félix; Hernández, Santiago (WIT Press, 2021)[Abstract] In computational fluid dynamics (CFD) simulations, verification is the process of identifying both the spatial and the temporal discretisations providing relatively insensitive model results. The underlying goal ... -
Wind tunnel study on the effect of the gap width in the aerodynamic and aeroelastic responses of twin-box decks
Nieto Mouronte, Félix; Cid Montoya, Miguel; Fontán, Arturo; Hernández, Santiago; Rapela Ponte, Carlos; Álvarez Naveira, Antonio José; Jurado, José Ángel; Casteleiro Pena, Alejandro; García, Verónica (WIT Press, 2018)[Abstract:] Twin-box decks have recently been introduced in long-span bridges because this type of slotted cross-section provides flutter critical wind speeds higher than mono-box streamlined decks for flexible structures. ...