Simulation numérique du décrochage dynamique sur un profil d'aile en mouvement, en rotation PDF Download
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Author: Ko-Foa Tchon
Publisher:
ISBN:
Category :
Languages : fr
Pages : 206
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Book Description
Author: Ko-Foa Tchon
Publisher:
ISBN:
Category :
Languages : fr
Pages : 206
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Book Description
Author: Ion Paraschivoiu
Publisher: Presses inter Polytechnique
ISBN: 9782553009310
Category : Vertical axis wind turbines
Languages : en
Pages : 472
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Book Description
The depletion of global fossil fuel reserves combined with mounting environmental concerns has served to focus attention on the development of ecologically compatible and renewable alternative sources of energy. Wind energy, with its impressive growth rate of 40% over the last five years, is the fastest growing alternate source of energy in the world since its purely economic potential is complemented by its great positive environmental impact. The wind turbine, whether it may be a Horizontal Axis Wind Turbine (HAWT) or a Vertical Axis Wind Turbine (VAWT), offers a practical way to convert the wind energy into electrical or mechanical energy. Although this book focuses on the aerodynamic design and performance of VAWTs based on the Darrieus concept, it also discusses the comparison between HAWTs and VAWTs, future trends in design and the inherent socio-economic and environmental friendly aspects of wind energy as an alternate source of energy.
Author: Laurence Petit
Publisher:
ISBN:
Category :
Languages : fr
Pages : 268
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Book Description
LE PRESENT MEMOIRE DE THESE CONCERNE LA SIMULATION EXPERIMENTALE ET NUMERIQUE DU DECROCHAGE DYNAMIQUE D'UN PROFIL OSCILLANT EN ECOULEMENT BIDIMENSIONNEL. L'INSTATIONNARITE EST SIMULEE PAR L'INTERMEDIAIRE D'UN MOUVEMENT COUPLE DE TAMIS-TANGAGE, PERMETTANT DE GENERER DES VARIATIONS SIMULTANEES DE VITESSE ET D'INCIDENCE AUTOUR DU PROFIL DE TYPE OA209. LES CYCLES D'OSCILLATION EN VITESSE ET EN INCIDENCE SONT REPRESENTATIFS DES CONDITIONS REELLES DE DECROCHAGE RENCONTREES PAR LES SECTIONS DE PALE D'UN ROTOR D'HELICOPTERE EN VOL D'AVANCEMENT. L'ANALYSE DE LA REPONSE GLOBALE ET LOCALE DU PROFIL AU MOUVEMENT DE TAMIS-TANGAGE CONDUIT A DEGAGER L'INFLUENCE DE LA SUPERPOSITION DES VARIATIONS DE LA VITESSE ET DE L'INCIDENCE PAR RAPPORT AU MOUVEMENT DE TANGAGE. L'AUGMENTATION DES VALEURS DES PARAMETRES DE L'INSTATIONNARITE MONTRE EN PARTICULIER UN NET ACCROISSEMENT DE L'AMPLITUDE DES BOUCLES D'HYSTERESIS EN PORTANCE, QUI TRADUIT LE FAIT QUE LES PROCESSUS DE DECROCHAGE ENGENDRES PAR LE MOUVEMENT COUPLE SONT DE NATURE DIFFERENTE DE CEUX RESULTANT DES SEULES VARIATIONS D'INCIDENCE. LES DONNEES EXPERIMENTALES ACQUISES EN MOUVEMENT DE TANGAGE ET EN MOUVEMENT COUPLE SONT ENSUITE MISES A PROFIT POUR AMELIORER ET VALIDER DEUX MODELES DE CALCUL DU DECROCHAGE DE NATURE SEMI-EMPIRIQUE (CODE INDICE ET CODE GBCN2D). LES AMELIORATIONS APPORTEES QUANT A L'OPTIMISATION DES JEUX DE CONSTANTES A INTRODUIRE DANS CES CODES, ONT PERMIS D'ABOUTIR A UNE EXCELLENTE PREVISION DES BOUCLES DETERMINEES EXPERIMENTALEMENT EN MOUVEMENT DE TANGAGE ET DE TAMIS-TANGAGE
Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 484
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Author:
Publisher:
ISBN:
Category : Wind power
Languages : en
Pages : 308
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Book Description
Author: Susan M. Hock
Publisher:
ISBN:
Category : Reference
Languages : en
Pages : 228
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Book Description
Author: Walter D. Musial
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 304
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 704
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Book Description
Author: Ion Paraschivoiu
Publisher: Presses inter Polytechnique
ISBN: 9782553011306
Category : Science
Languages : en
Pages : 568
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Book Description
Author: Michael Jones
Publisher: Springer Science & Business Media
ISBN: 9048199328
Category : Science
Languages : en
Pages : 327
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Book Description
This important and insightful book provides, for the first time, a broad presentation of ongoing research into public participation in landscape conservation, management and planning, following the 2000 European Landscape Convention which came into force in 2004. The book examines both the theory of participation and what lessons can be learnt from specific European examples. It explores in what manner and to what extent the provisions for participation in the European Landscape Convention have been followed up and implemented. It also presents and compares different experiences of participation in selected countries from northern, southern, eastern and western Europe, and provides a critical examination of public participation in practice. However, while the book’s focus is necessarily on Europe, many of the conclusions drawn are of global relevance. The book provides a valuable reference for researchers and advanced students in landscape policies and management, as well as for professionals and others interested in land-use planning and environmental management.
