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#formulawindy: wind engineering |
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related projects
Ultimate & Resilient solar tracker generation.
Aeroelastic analysis of single axis Photovoltaic Solar Trackers.
Wind tunnel test of the fifth Tower (Madrid).
Influence of ground proximity to a tilt flat plate. I: static coeffs.
Aerodynamic study of the four towers of Madrid.
Alconétar Arches wind tunnel test.
Aerodynamic study of box & struts deck bridge.
Influence of scaffolding supports on the aerodynamics of a bridge formwork.
Ultimate & Resilient solar tracker generation (2019-current). |
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This ambitious project addresses the deep understanding of the phenomena involved in the aerodynamic stability of PV solar trackers. The approach of classical galloping (quasi static) and conclusions from the static flat plate problem are not enough theoretical background. Neither trying to apply the rules contained in the international standard codes (i.e. Eurocode).
Many powerful and advanced tools has been used by the research team, starting in May 2029:
Many powerful and advanced tools has been used by the research team, starting in May 2029:
- A complete campaign of full aeroelastic tests carried out into our Wind Tunnels located in our University
- Mechanical FEM (Finite Element Method) and CFD (Computational Fluid Dynamics) numerical simulation techniques (under academic licensing). Once the coupled phenomena has been set, FSI (Fluid Structure Interaction, two way coupling) analysis has been developed as well.
- Work started from a tight theoretical analysis of the equations of the movement of the structure and we made it non-dimensional
Media content below describe some aspects of the work:
CFD numerical simulation of four rows of solar tracker, taking into account the ground effect and the movement (torsion DOF) of the structure: transient interferences between trackers.
Vorticity (1/s) contours in a static and transient CFD analysis of 1 solar tracker with ground effect.
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Full aerolastic test of a solar tracker.
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Velocity (m/s) contours around a solar tracker with ground effect, static transient CFD analysis.
Vorticity (1/s) contours around 4 rows of solar trackers with ground effect, static transient CFD analysis.
Structural FEM analysis (elastic and non-linear contacts) of a real solar tracker: deformation of the structure subjected to gravity plus a moment at the free end.
CFD analysis of the fluid structure interaction coupled problem of torsional galloping of a solar tracker (simplified model).
Aeroelastic analysis of single axis Photovoltaic Solar Trackers. |
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A new method for testing full aeroelastic scale models (in Wind Tunnel) of photovoltaic solar trackers and calculating the stability diagrams of such extreme slender structures, including the shelter effect induced by the first row, depending on aspect ratio, has been developed. Two scientific contributions are under review and will be published soon.
Slide presentation above shows the full aeroelastic test in Wind Tunnel of a single axis solar tracker: the conclusion was the correct sizing of the torque tube for avoiding torsional galloping of a real kind of solar tracker and depicting the stability diagram (by Eduardo Blanco Marigorta, Eva Martínez García, Jorge Parrondo Gayo and Antonio Navarro-Manso: #formulawindy, Hydraulic Engineering and Fluid Mechanics Areas, Energy Department, University of Oviedo).
Videos below show the shelter effect of the first row, and demonstrate that is not secure to assume the protection of the second and next rows by the first one.
Videos below show the shelter effect of the first row, and demonstrate that is not secure to assume the protection of the second and next rows by the first one.
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2D CFD simulation of a single axis solar tracker: analysis of the aeroelastic mechanisms of galloping, by Eduardo Blanco Marigorta, Eva Martínez García, Jorge Parrondo Gayo and Antonio Navarro-Manso: #formulawindy, Hydraulic Engineering and Fluid Mechanics Areas, Energy Department, University of Oviedo.
Wind tunnel test of the fifth Tower (Madrid).
The study of site-wind interferences on buildings is an amazing subject. This work is currently carried out by Olaya Gómez Carril. We are comparing the experimental results with the Spanish code. Some CFD models will be also developed.
Influence of ground proximity to a tilt flat plate. I: static coeffs.
In order to deep in the behaviour of solar trackers (or any other similar structure), we are testing a "rigid" flat plate and plotting drag, lift and moment coefficients vs. tilt angle, proximity to the ground and aspect ratio of the panel. This work is currently carried out by Beatriz Bayón García. We are also carrying out some CFD models.
An aeroelastic test has been carried out. The video shows the vibration of one of the specimens mounted with two end-plates.
Aerodynamic study of the four towers of Madrid.
Another interesting project: study of site-wind interferences on buildings. Some time ago we have studied the case of the 4 towers of Madrid. We expect to apply all that knowledge to the construction of the fifth!!! The work has been developed by Ignacio Rodríguez Sánchez. This study is being complemented with a numerical simulation (CFD).
Alconétar Arches wind tunnel test.
This has become a classical issue in Wind Engineering. Our students will be able to distinguish between many aeroelastic phenomena as well as they learn the types of wind tunnel test: sectional 2D and complete 3D. This work is currently conducted by Anselmo Antuña Gómez. A 2D CFD model is being analyzing.
Aerodynamic study of box & struts deck bridge.
This experiment explains the behaviour of a launched bridge and the influence of the struts and upper slab on the aerodynamic coefficients. This work is currently conducted by Javier Ruiz Berciano.
Influence of scaffolding supports on the aerodynamics of a bridge formwork.
There is no structured and systematised information about aerodynamic coefficients on bridge scaffoldings and formworks. This work is currently conducted by Marcelo Álvarez Gallego and bridge the gap between the codes and reality.
#formulawindy gathers all our work related to (but not only) Wind Tunnel tests (Aeroelasticity & Aerodynamics, Hydraulic Machinery, Wind Engineering, Pollutant Dispersion, Aeroacustics, even Water Tunnel tests included) and it is formed exclusively by Professors and Researchers of the Energy Departement and GIFD (Spanish Official Research Group) of the University of Oviedo. Visit us: http://gifd.grupos.uniovi.es/inicio, or A. Navarro-Manso.
