NOUS PRESENTONS DANS CETTE THESE UNE APPROCHE ORIGINALE DE LA CONSTRUCTION DU SILLAGE DERRIERE UN PROFIL D'AILE. CETTE METHODE PERMET D'EVALUER TOUS LES EFFORTS AERODYNAMIQUES S'EXERCANT SUR UN PROFIL DONNE. LE MODELE D'ECOULEMENT CONSIDERE EST CELUI DE L'ECOULEMENT POTENTIEL. LA METHODE DE RESOLUTION UTILISEE EST CELLE DES SINGULARITES : ON RAMENE AINSI LA RESOLUTION DU PROBLEME EXTERIEUR POSE DANS UN DOMAINE NON BORNE A LA RESOLUTION D'EQUATIONS INTEGRALES SINGULIERES POSEES SUR LA FRONTIERE, CE QUI VA SE TRADUIRE PAR UNE ECONOMIE IMPORTANTE DANS LE COUT ET LE TEMPS DE CALCUL. CETTE METHODE PERMET AUSSI D'EVITER LE PROBLEME DU REMAILLAGE LORS DE LA CONSTRUCTION DU SILLAGE. DES METHODES SPECIFIQUES POUR INTEGRER LES NOYAUX SINGULIERS ONT ETE DEVELOPPEES. AFIN DE CONSTRUIRE LE SILLAGE EN PRENANT EN COMPTE TOUTES SES CARACTERISTIQUES PHYSIQUES, NOUS AVONS CHOISI DE METTRE EN UVRE UNE METHODE D'OPTIMISATION DE FORME. EN EFFET, LE SILLAGE EST, D'UNE PART, UNE LIGNE DE GLISSEMENT - CARACTERISTIQUE PRISE EN COMPTE DANS LES EQUATIONS INTEGRALES - ET, D'AUTRE PART, UNE LIGNE EN EQUILIBRE AERODYNAMIQUE, IE EN EQUILIBRE DE PRESSION. CETTE CARACTERISTIQUE EST REALISEE LORS DE L'OPTIMISATION DE FORME. LA MISE EN UVRE DE CETTE METHODE NECESSITE LE CALCUL DU GRADIENT ET D'UN ETAT ADJOINT. ENFIN NOUS NOUS SOMMES EGALEMENT INTERESSES A L'ETUDE DE CONDITIONS AUX LIMITES EQUIVALENTES POUR UN ECOULEMENT POTENTIEL LE LONG DE PAROIS RUGUEUSES. POUR CELA, NOUS AVONS UTILISE LES METHODES D'HOMOGENEISATION A L'AIDE DE DEVELOPPEMENTS ASYMPTOTIQUES A DEUX ECHELLES.

This book is a collection of extended papers based on presentations given during the SIMHYDRO 2014 conference, held in Sophia Antipolis in June 2014. It focuses on the modeling and simulation of fast hydraulic transients, on 3D modeling, and on uncertainties and multiphase flows. The book explores both the limitations and performance of current models and presents the latest developments based on new numerical schemes, high-performance computing, multiphysics and multiscale methods, and better interaction with field or scale model data. It addresses the interests of practitioners, stakeholders, researchers and engineers active in this field.

The Conference Proceedings contains 38 papers presented at the Propulsion and Energetics Panel 73rd Symposium on 'Aircraft Fire Safety' which was held 22 - 26 May 1989 in Sintra, Portugal. The Symposium was arranged in the following sessions: Review of Fire-Related Aircraft Accidents (3); Fire Safety Standards and Research Programmes (6); Aircraft Internal Fires (9); Aircraft External Fires (2); Fire Safety of Military Weapon Systems (3); Fire Hardening by Advanced Materials and Structural Design (8); Passenger Behaviour in Emergency Situations (3); and Passenger Protective Equipment (4). The Technical Evaluation Report and and Addendum are included at the beginning of the Proceedings. Questions and answers of the discussions follow each paper. The last AGARD review on the subject took place in a Specialists' Meeting in 1975, followed by a Working Group Report in 1979 and Lecture Series in 1982. The purpose of the Symposium was a review of the present state-of-the-art and of the last improvements. Although the safety standards in aviation are already very high, there is still room for improvements. They are listed in the Conclusions and Recommendations of the Technical Evaluation Report and in the Addendum.