Cel Reliable predictions of turbulent gaseous combustion events in large-scale industrial devices or nuclear reactor containments under accident conditions play an increasingly important role in the design process of such facilities. However, existing theoretical and numerical models of turbulent high-speed combustion, in particular for the transition to detonation, are as yet insufficient for design purposes.In this research project, improved turbulent combustion models will be developed which will particularly account for the effects of compressibility and stochastic instability, based on two fundamentally different approaches. One approach relies on probability density methods and Monte Carlo simulation of the evolution of the probability density functions for a reactive scalar. The other scheme is based on the flamelet theory of turbulent combustion, which assumes chemical reactions to take place in an ensemble of thin quasi-one-dimensional laminar flames. These existing models, valid for low-speed combustion, will be extended to compressible high-speed combustion regimes. The schemes will be implemented in modern shock capturing compressible flow solvers, which operate efficiently at both low and high flow Mach numbers. The extensive existing databases of two Russian participants will be used, as well as new specifically designed experiments on high-speed combustion, deflagration-to-detonation transition and stochastic auto-ignition in order to support the physical understanding and theoretical modelling. Suitable models for stochastic auto-ignition will also be developed and included in the numerical schemes, in order to capture both the possibilities of a rapid flame acceleration and stochastic/gasdynamic auto-ignition in the unburned gases. A detailed report on the specific problems arising together with comparably detailed research proposals for further study or preferably new solutions to overcome these difficulties will be provided. Program(-y) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Temat(-y) 59 - Energy Zaproszenie do składania wniosków Data not available System finansowania Data not available Koordynator Rheinisch Westfälische Technische Hochschule Aachen Wkład UE Brak danych Adres Templergraben 64 52056 Aachen Niemcy Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (4) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko Ecole Nationale des Ponts et Chaussées Francja Wkład UE Brak danych Adres 93167 Noisy le Grand Zobacz na mapie Koszt całkowity Brak danych Russian Academy of Sciences Rosja Wkład UE Brak danych Adres 117977 Moscow Zobacz na mapie Koszt całkowity Brak danych Russian Research Centre I.V. Kurchatov Institute Rosja Wkład UE Brak danych Adres 123182 Moscow Zobacz na mapie Koszt całkowity Brak danych Ural State University Rosja Wkład UE Brak danych Adres 620083 Yekaterinburg Zobacz na mapie Koszt całkowity Brak danych
