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Author: J. Luneau
Publisher:
ISBN:
Category :
Languages : fr
Pages : 75
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Book Description
Author: J. Luneau
Publisher:
ISBN:
Category :
Languages : fr
Pages : 75
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Author: Marie-Christine Guégan
Publisher:
ISBN:
Category :
Languages : fr
Pages : 158
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Book Description
DANS CE MEMOIRE, L'ATTENTION S'EST PORTEE SUR L'ETUDE DU SILLAGE PROCHE TURBULENT D'OBSTACLES POINTUS ET ELANCES A MACH 7. APRES UNE EVALUATION DE L'ENSEMBLE DES CONNAISSANCES DANS LE DOMAINE DE SILLAGES SUPERSONIQUES, DEUX ASPECTS DE L'ETUDE SONT CONSIDERES. EXPERIMENTALEMENT, DES SONDAGES EN PRESSION ET TEMPERATURE PAR THERMOCOUPLE FIN SONT EFFECTUES DANS LE SILLAGE D'UN CONE ET D'UN DIEDRE. NUMERIQUEMENT, UN CODE RANS, DANS LEQUEL EST IMPLANTE UN MODELE DE TURBULENCE K BAS-REYNOLDS, PERMET LE CALCUL, ENTRE AUTRES, DES DEUX CONFIGURATIONS PRECITEES. L'EVALUATION DU CODE EST D'ABORD REALISEE PAR RAPPORT AU CAS TEST DE L'ARRIERE-CORPS CYLINDRIQUE A MACH 2.4. LES RESULTATS NUMERIQUES CONCERNANT LES SILLAGES DU CONE ET DU DIEDRE SONT, PAR LA SUITE, CONFRONTES AUX RESULTATS EXPERIMENTAUX OBTENUS A PARTIR DE CES DEUX MEMES CONFIGURATIONS.
Author: Michel Raffin
Publisher:
ISBN:
Category :
Languages : fr
Pages : 30
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Author: Paul Tchepidjian
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Category :
Languages : fr
Pages : 128
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Author: Danièle-Anne Falchero
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Category :
Languages : fr
Pages : 92
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Author: B. C. Jaeggy
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Category :
Languages : fr
Pages : 32
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Author: J. Vauvrecy
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Category :
Languages : fr
Pages : 72
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Category : Aeronautics
Languages : en
Pages : 712
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Jean-Paul Bonnet
Publisher:
ISBN:
Category :
Languages : fr
Pages : 171
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Book Description
ETUDE EXPERIMENTALE DU SILLAGE TURBULENT SUPERSONIQUE DE PLAQUE PLANE A HAUT NOMBRE DE REYNOLDS; ANEMOMETRIE A TEMPERATURE CONSTANTE: TENSIONS TURBULENTES ET CORRELATIONS SPATIO-TEMPORELLES, FILTREES OU NON-COMPORTEMENT DU SILLAGE EN TROIS ZONES. EVOLUTION DES FLUCTUATIONS DIFFERENTE DU CAS INCOMPRESSIBLE. CORRELATIONS SPATIALES COMPAREES AU MODELE CLASSIQUE INCOMPRESSIBLE; SURFACES D'ISO-CORRELATION SOUS FORME D'ELLIPSOIDES INCLINEES, VISUALISATIONS ULTRA-RAPIDES; EVOLUTION DES ECHELLES CARACTERISTIQUES ET DE PLUSIEURS PARAMETRES DE TURBULENCE. ETUDE NUMERIQUE PAR FERMETURE AU SECOND ORDRE (MOMENTS EN UN POINT, MOYENNES PONDEREES PAR LA MASSE), EQUATIONS POUR LA DISSIPATION ET UNE ECHELLE CARACTERISTIQUE; APPLICATIONS AUX SILLAGES SUBSONIQUES ET AU CAS SUPERSONIQUE ETUDIE
Author: Michał Lunc
Publisher: Elsevier
ISBN: 1483184323
Category : Technology & Engineering
Languages : en
Pages : 613
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Book Description
Propulsion Re-Entry Physics deals with the physics of propulsion re-entry and covers topics ranging from inductive magnetoplasmadynamic (MPD) propulsion systems to launch systems and orbiting maneuvering systems. Problems of re-entry aerodynamics are considered, along with interaction problems in hypersonic fluid dynamics. Comprised of 31 chapters, this volume begins with a detailed account of the quasi-steady adiabatic vaporization and subsequent exothermic decomposition of a pure monopropellant spherical droplet in the absence of free and forced convection. The discussion then turns to results of calculations on MPD machines working in the intermittent and in the continuous mode; inductive plasma accelerators with electromagnetic standing waves; and spherical rocket motors for space and upper stage propulsion. Subsequent chapters focus on pulsed plasma satellite control systems; drag and stability of various Mars entry configurations; hypersonic laminar boundary layers around slender bodies; and effects of an entry probe gas envelope on experiments concerning planetary atmospheres. This book will appeal to students, practitioners, and research workers interested in propulsion re-entry and the accompanying physics.
