Technical and functional analysis of Spanish windmills: 3D modeling, computational-fluid-dynamics simulation and finite-element analysis

•Technical and functional analysis of the two typologies of windmills in Spain.•Spatial distribution of velocities and pressures by computational-fluid dynamics (CFD).•Finite-element analysis (FEA) of the rotors of these two types of windmills.•Validation of the operative functionality of these wind...

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Vydané v:Energy conversion and management Ročník 123; s. 130 - 139
Hlavní autori: Rojas Sola, José Ignacio, Bouza-Rodríguez, José Benito, Menéndez-Díaz, Agustín
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Elsevier Ltd 01.09.2016
Predmet:
3D modeling
Computational-fluid dynamics (CFD) Simulation
Cultural heritage
finite element analysis
Finite element method
Finite-element analysis (FEA)
fluid mechanics
geometry
Industrial archaeology
Mathematical analysis
Modelling
research methods
Rotors
Spain
Spanish windmill
Stresses
Three dimensional models
Towns
wind speed
Windmills
wood
Denmark, Jylland, Vejers
ANE, Spain, Andalucia, Cadiz
INE, USA, California, San Francisco
Cameroon, Sud, Campo
Spain
Spanish windmill
3D modeling
Cultural heritage
Computational-fluid dynamics (CFD) Simulation
Finite-element analysis (FEA)
Industrial archaeology
ISSN:0196-8904, 1879-2227
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Popis
Shrnutí:•Technical and functional analysis of the two typologies of windmills in Spain.•Spatial distribution of velocities and pressures by computational-fluid dynamics (CFD).•Finite-element analysis (FEA) of the rotors of these two types of windmills.•Validation of the operative functionality of these windmills. A detailed study has been made of the two typologies of windmills in Spain, specifically the rectangular-bladed type, represented by the windmill ‘Sardinero’, located near the town of Campo de Criptana (Ciudad Real province, Spain) and the type with triangular sails (lateens), represented by the windmill ‘San Francisco’, in the town of Vejer de la Frontera (Cádiz province, Spain). For this, an ad hoc research methodology has been applied on the basis of three aspects: three-dimensional geometric modeling, analysis by computational-fluid dynamics (CFD), and finite-element analysis (FEA). The results found with the CFD technique show the correct functioning of the two windmills in relation to the spatial distribution of the wind velocities and pressures to which each is normally exposed (4–7m/s in the case of ‘Sardinero’, and 5–11 for ‘San Francisco’), thereby validating the operative functionality of both types. In addition, as a result of the FEA, the spatial distribution of stresses on the rotor has revealed that the greatest concentrations of these occurs in the teeth of the head wheel in ‘Sardinero’, reaching a value of 12MPa, and at the base of the masts in the case of the ‘San Francisco’, with a value of 24MPa. Also, this analysis evidences that simple, effective designs to reinforce the masts absorb a great concentration of stresses that would otherwise cause breakage. Furthermore, it was confirmed that the oak wood from which the rotors were made functioned properly, as the windmill never exceeded the maximum admissible working stress, demonstrating the effectiveness of the materials used in this period.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2016.06.031