The Theory of Propellers PDF Download

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The Theory of Propellers

The Theory of Propellers PDF Author: Theodore Theodorsen
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 184

Book Description
Summary: A technical method is given for calculating the axial interference velocity of a propeller. The method involves the use of certain weight functions P, Q, and F. Numerical values for the weight functions are given for two-blade, three-blade, and six-blade propellers.

The Theory of Propellers

The Theory of Propellers PDF Author: Theodore Theodorsen
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 184

Book Description
Summary: A technical method is given for calculating the axial interference velocity of a propeller. The method involves the use of certain weight functions P, Q, and F. Numerical values for the weight functions are given for two-blade, three-blade, and six-blade propellers.

Satellite Situation Report

Satellite Situation Report PDF Author:
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 100

Book Description


Space Debris

Space Debris PDF Author: Heiner Klinkrad
Publisher: Springer Science & Business Media
ISBN: 3540376747
Category : Technology & Engineering
Languages : en
Pages : 438

Book Description
The future evolution of the debris environment will be forecast on the basis of traffic models and possible hazard mitigation practices. The text shows how large trackable objects will have re-entry pinpointed and predictions made on related risk assessment for possible ground impact. Models will also be described for meteoroids which are also a prevailing risk.

Transonic Aerodynamics

Transonic Aerodynamics PDF Author: L. Pamela Cook
Publisher: SIAM
ISBN: 0898713102
Category : Technology & Engineering
Languages : en
Pages : 98

Book Description
This volume offers exciting results, perspectives, and case studies for the treatment of problems arising in transonic aerodynamics. New advances including triple deck theory, analysis of stagnation at the nose of a body, transonic choked flow, and the transonic area rule are presented. Interest in analyzing the transonic range of flight, its stability properties, and especially the question of designing reduced drag (shockless or weak shock) airfoils keeps growing. Present day commercial aircraft cruise in the transonic range. Mechanical and aeronautical engineers interested in compressible fluid flows, design of optimal wings, and an understanding of transonic flow held about wings and airfoils will find the book invaluable. This book is understandable to those with a knowledge of continuum mechanics (fluids) and asymptotic methods. It is appropriate for graduate courses in aerodynamics and mathematical methods.

Simulation numérique d'écoulements hypersoniques réactifs hors-équilibre chimique

Simulation numérique d'écoulements hypersoniques réactifs hors-équilibre chimique PDF Author: Nathalie Glinsky
Publisher:
ISBN:
Category :
Languages : fr
Pages : 265

Book Description
LE BUT DE CE TRAVAIL EST DE SIMULER NUMERIQUEMENT L'ECOULEMENT HYPERSONIQUE AUTOUR D'UN ENGIN SPATIAL LORS DE SA RENTREE ATMOSPHERIQUE. ON RESOUT D'ABORD UN PROBLEME MONODIMENSIONNEL MODELISANT LES PHENOMENES DE DISSOCIATION CHIMIQUE ET DE RELAXATION DERRIERE UN CHOC FORT DETACHE PAR UNE METHODE D'AVANCEMENT EN ESPACE. ON EXAMINE ENSUITE LA STABILITE DES SCHEMAS DECENTRES POUR LES EQUATIONS BIDIMENSIONNELLES DE CONVECTION ET DE CONVECTION-DIFFUSION D'UNE ESPECE. ON ETUDIE ENSUITE DES ECOULEMENTS REACTIFS BIDIMENSIONNELS REGIS PAR LES EQUATIONS D'EULER PUIS DE NAVIER-STOKES AUXQUELLES ON AJOUTE UN MODELE DE DISSOCIATION CHIMIQUE HORS-EQUILIBRE. DANS UNE APPROCHE PSEUDO-INSTATIONNAIRE, ON UTILISE UNE DISCRETISATION SPATIALE DE TYPE MIXTE VOLUMES FINIS/ELEMENTS FINIS P1 DECENTRES APPLICABLE A DES MAILLAGES TRIANGULAIRES NON STRUCTURES. L'EXTENSION A L'ORDRE 2 EST FAITE PAR LA METHODE M.U.S.C.L. L'INTRODUCTION DES EQUATIONS DE BILAN DES ESPECES EST REALISEE SELON L'APPROCHE DECOUPLEE ET L'UTILISATION D'UN GAMMA-EQUIVALENT. LE TERME DE PRODUCTION DES ESPECES EST TRAITE IMPLICITEMENT. CETTE METHODE EST VALIDEE. ON PRESENTE ENFIN DES SOLUTIONS NUMERIQUES D'ECOULEMENTS (NON VISQUEUX ET VISQUEUX) AUTOUR DE CORPS EMOUSSES ET D'UNE GEOMETRIE DE DOUBLE-ELLIPSE MODELISANT LA NAVETTE EUROPEENNE HERMES