Objetivo The objectives of the present project include numerical, experimental and theoretical investigations of shock interaction phenomena and structure of imperfectly expanded supersonic jets. It is proposed that different levels of numerical simulation will be employed: the Euler, the Reynolds averaged Navier-Stokes, and Large Eddy simulation. The Large Eddy Simulation (LES) numerical software will be used based on the Weighted Essentially Non-oscillatory (WENO) Schemes of the fifth order. Some sub grid scale model will be incorporated and tested. A number of phenomena inherent in supersonic jets, mainly connected with their shock wave structure, will be simulated. In particular, shock wave configurations observed in supersonic jets discharged from plane, round, and rectangular nozzles will be considered. The existence domains of different configurations and criteria of the transition between them will be studied, and possibility of hysteresis phenomena at the transition will be examined.Other important subjects which will be simulated, are the formation of steady-state stream wise vortices in the first cell of an under-expanded jet, the impulsive start-up process, and development of hydrodynamic instability waves in jet shear layers and their interaction with the steady shock cell structure of the jet.The experimental study will be performed, which are aimed to producing necessary data for comparison with numerical predictions and validation of the numerical codes. It will be focused on a few actual subjects such as the hysteresis phenomena at the transition between different shock wave configurations, formation of steady-state streamwise vortices in curved shear layers of supersonic jets, and some others.The analytical consideration of some problems should help to specify the regimes at which experiments and numerical simulations will be undertaken and assist in analysing the obtained results.It should be noted that the present project continues the investigation of shock interaction phenomena started in the framework of the preceding INTAS project No.96-2356 "Study of transition between regular and Mach reflection of strong shock waves and related hysteresis phenomena in steady flows". One can hope that realization of the present research project will allow us to develop numerical software for high-resolution simulation of supersonic flows with interacting shock waves and extend our knowledge about complex physical phenomena in supersonic jets. Programa(s) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Tema(s) 6 - Engineering Sciences, Aeronautics, Space OPEN - OPEN Call Convocatoria de propuestas Data not available Régimen de financiación Data not available Coordinador Centre National de la Recherche Scientifique Aportación de la UE Sin datos Dirección Rue de l'Universite 76801 Saint-Etienne du Rouvray Francia Ver en el mapa Coste total Sin datos Participantes (5) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo Baltic State Technical University Rusia Aportación de la UE Sin datos Dirección Kranoselskaya St. 1 198005 St. Petersburg Ver en el mapa Coste total Sin datos Novosibirsk State Educational University Rusia Aportación de la UE Sin datos Dirección Viluiskaya St. 28 630126 Novosibirsk Ver en el mapa Coste total Sin datos ONERA - Office National d'Etudes et de Recherches Aerospatiales Francia Aportación de la UE Sin datos Dirección Rue des Vertugadins 92190 Meudon Ver en el mapa Coste total Sin datos Siberian Branch of Russian Academy of Sciences Rusia Aportación de la UE Sin datos Dirección Institutskaya St. 4/1 630090 Novosibirsk Ver en el mapa Coste total Sin datos University of Rome "La Sapienza" Italia Aportación de la UE Sin datos Dirección Via Eudossiana 18 00184 Rome Ver en el mapa Coste total Sin datos
