Download or read book Contribution la simulation num rique d un moteur deux temps written by Chawki Habchi and published by . This book was released on 1990 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ETUDE PRESENTE A COMMENCE PAR LE DEVELOPPEMENT D'UN ALGORITHME, INTEGRABLE DANS LE CODE KIVA, DE GENERATION ET D'ADAPTATION AUTOMATIQUE DE MAILLAGES 3D QUI PERMET DE TENIR COMPTE DE LA MOBILITE DES FRONTIERES D'UNE CHAMBRE DE COMBUSTION D'UN MOTEUR A PISTON. CET OUTIL A ETE UTILISE AVEC UNE EFFICACITE NOTOIRE DANS LA CONCEPTION DU MOTEUR 2 TEMPS IAPAC DE L'IFP. L'OBJECTIF GENERAL ETANT L'AMELIORATION DU CODE KIVA, NOUS SOMMES ENSUITE PASSES A UNE ETUDE THEORIQUE ET BIBLIOGRAPHIQUE DES DIFFERENTS TYPES DE CONDITIONS AUX LIMITES. DANS LE CAS DES ECOULEMENTS TURBULENTS, NOUS AVONS REUSSI A DEFINIR UN CRITERE SUFFISANT, SUR LES CONDITIONS AUX LIMITES, PERMETTANT D'AFFIRMER SI LES EQUATIONS DE NAVIER-STOKES POSSEDENT UNE SOLUTION. NOUS AVONS ENSUITE INTRODUIT LE MODELE K- DANS LE CODE KIVA. PUIS, POUR FINIR L'ETUDE THEORIQUE, NOUS AVONS PROPOSE DIFFERENTES LOIS DE PAROI ADAPTEES AUX GEOMETRIES COMPLEXES. ENFIN, LE CODE AINSI MODIFIE A ETE VALIDE A L'AIDE DE MESURES SUR UNE MAQUETTE SIMULANT UNE CHAMBRE DE COMBUSTION AVEC SON ADMISSION ET SON ECHAPPEMENT
Download or read book New Generation of Two St written by Pierre Duret and published by Editions OPHRYS. This book was released on with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Fluid Dynamics 92 written by Ch Hirsch and published by Elsevier Publishing Company. This book was released on 1992 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: The European Computational Fluid Dynamics Conference and the European Conference on Numerical Methods in Engineering are major large scale events attracting the whole international community engaged in Computational Methods in Applied Sciences. The 146 papers, including many colour illustrations, in this two part volume cover topics such as: Numerical Methods: Finite difference, finite and boundary elements, volume methods; Spectral methods; Convergence acceleration methods: multigrid, pre-conditioning; Domain decomposition, zonal methods; Massively parallel and vector computing on new architectures; Mesh generation and adaptive grid refinement; Visualization techniques; Particle and microscopic simulation methods. Modelizations and Applications: Innovative algorithms for Euler and Navier-Stokes equations; Laminar and turbulent flows; Turbulence and transition modelization; Direct simulation of turbulence; Multiphase and reacting flows; Heat transfer and combustion; Free surface problems; Non-Newtonian fluids; Flow in porous media; Industrial applications for low to high speed internal and external flows.The volumes will prove a useful and dynamic tool for those wishing to increase their knowledge of Computational Methods in Applied Sciences, as well as providing a guide to recent literature in this rapidly expanding area.
Download or read book CONTRIBUTION A L ETUDE DES TRANSFERTS DE MASSE DANS LES MOTEURS ALTERNATIFS A COMBUSTION INTERNE written by ERIC.. PINATEL and published by . This book was released on 1994 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'AMELIORATION DES RENDEMENTS ET LA DIMINUTION DES EMISSIONS DE POLLUANTS DES MOTEURS A COMBUSTION INTERNE NECESSITENT L'ETUDE DES ECOULEMENTS DE FLUIDE DANS LE CYLINDRE MOTEUR. L'ECOULEMENT DE BALAYAGE DU CYLINDRE D'UN MOTEUR A DEUX TEMPS EST ETUDIE PAR VOIES EXPERIMENTALE ET NUMERIQUE. NOUS EMPLOYONS DES MOYENS DE MESURE SPECIFIQUES: UN ANEMOMETRE L.D.V. POUR MESURER LES VITESSES, DES CAPTEURS PIEZO-ELECTRIQUES OU A JAUGES DE CONTRAINTE POUR LES PRESSIONS ET UN THERMOCOUPLE FIN POUR LES TEMPERATURES. LES MESURES EFFECTUEES PERMETTENT D'EXPLIQUER L'EVOLUTION DE L'ECOULEMENT PENDANT UN CYCLE DU MOTEUR. IL EXISTE: UN CONTRE-BALAYAGE A L'OUVERTURE DES LUMIERES D'ADMISSION ; UN ECOULEMENT DE REMPLISSAGE DU CYLINDRE PENDANT LA PHASE OUVERTE QUI LIVRE LES GAZ FRAIS AVANT LE POINT MORT BAS ; UN SECOND CONTRE-BALAYAGE AVANT LA FERMETURE DES LUMIERES. NOUS AVONS TESTE DIFFERENTES CONFIGURATIONS DU MOTEUR: LORSQUE L'ANGLE TOTAL D'OUVERTURE DES LUMIERES D'ECHAPPEMENT AUGMENTE, LE PREMIER CONTRE-BALAYAGE DIMINUE D'INTENSITE MAIS LE SECOND EST INCHANGE ET LA LIVRAISON EST TOUJOURS FAITE AVANT LE POINT MORT BAS ; LORSQUE L'ON CREE UNE FORTE PERTE DE CHARGE DANS LE CANAL DE TRANSFERT, LE CONTRE-BALAYAGE D'OUVERTURE EST RETARDE ET LA LIVRAISON AUSSI. LE CONTRE BALAYAGE DE FERMETURE DISPARAIT COMPLETEMENT. CETTE CONFIGURATION FAVORISE LA STRATIFICATION DU MELANGE GAZ FRAIS/GAZ RESIDUELS ET PERMET D'OBTENIR UN MODE DE COMBUSTION PARTICULIER: LA COMBUSTION A.T.A.C. LA SIMULATION NUMERIQUE DES ECOULEMENTS APPORTE DES INFORMATIONS SUR L'INFLUENCE DE CERTAINS PARAMETRES GEOMETRIQUES SUR LE REMPLISSAGE DU CYLINDRE. LA SIMULATION DEVELOPPEE ICI EST THERMODYNAMIQUE. ELLE UTILISE UNE LOI DE COMBUSTION ESTIMEE EXPERIMENTALEMENT ET UN MODELE DE BALAYAGE A DEUX ZONES. LES RESULTATS OBTENUS CORROBORENT LES VALEURS DE MESURE LORSQUE LES EFFETS D'ONDES ET D'INERTIE NE SONT PAS PREPONDERANTS. CES ETUDES EXPERIMENTALE ET NUMERIQUE ONT PERMIS DE QUANTIFIER L'INFLUENCE DES MODIFICATIONS GEOMETRIQUES DU MOTEUR SUR SON COMPORTEMENT
Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Download or read book Annual Report 1989 90 written by New Brunswick. Department of Transportation and published by . This book was released on 1991 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt: General activity review of associated branches and agencies to the Department which includes corporate securities registrations, a list of tenders received, and general financial data. Branches and agencies reviewed are responsible for motor vehicle activity, highway construction, traffic engineering, telecommunications and public utilities.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991 with total page 1566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling and Simulation written by International Association of Science and Technology for Development and published by ACTA Press. This book was released on 1983 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Journal of Modelling Simulation written by and published by . This book was released on 1983 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement Computers and Control written by and published by . This book was released on 1979 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AGARD Lecture Series written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and published by . This book was released on 199? with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal A written by and published by . This book was released on 1989 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Principles and Methods for Aircraft Gas Turbine Engines written by and published by . This book was released on 1999 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: The symposium dealt with design approaches for military aircraft propulsion systems to provide enhanced operational flexibility, longer range, better fuel efficiency and improved affordability. All classes of gas turbines were addressed in nine sessions as follows: Engine Design and Analysis (Part 1) (5 papers); Mechanical Systems (6 papers); Controls (4 papers); Combustors/Augmentors (4 papers); Compressor Systems (Part I) (5 papers); Compressor Systems (Part II) (3 papers); Turbines (Part I) (5 papers); Turbines (Part II) (4 papers); Engine Design and Analysis (Part II) (4 papers) These proceedings also include a Technical Evaluation Report and a Keynote address published in French and English.
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Download or read book Handbook of Electric Machines written by S. A. Nasar and published by McGraw-Hill Companies. This book was released on 1987 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin de l Institut international du froid written by and published by . This book was released on 2000 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
