Objetivo "In modern aero-engine combustors combustor tiles are used to protect the walls from the hot gases, the temperature of which is rising in new engines due to increasing pressure ratios. However, the amount of air used for wall cooling should be reduced to allow for maximal air flow rates through the fuel injector. This measure enables optimised lean combustion with lowest pollutant emission rates. This objective can be achieved by combining effusion cooling on the hot side with impingement cooling on the cold side of the tiles. This complex system needs to be simulated during design processes.This project aims for improving the predictive capabilities and decreasing the uncertainties of current models regarding wall temperatures and thermal stresses. The model development will be supported and the emerging method will be validated by high-quality experimental data obtained from measurements on an engine-representative gas turbine combustor using Particle Image Velocimetry, Thermographic Phosphor Thermometry and Coherent anti-Stokes Raman Spectroscopy.An iterative method is proposed which couples tabulated chemistry based CFD and finite element method (FEM) simulations. In the CFD calculations previously ignored flame-wall interactions will be considered by adjusting turbulence models and extending the tabulation method to non-adiabatic conditions. Results of highly resolved large eddy simulations will be used to improve the computationally efficient RANS based techniques. The CFD calculations will provide the convective heat transfer for the FEM simulations as a boundary condition. For an accurate prediction of the metal temperature – which is then fed back into the CFD part - and thermal stresses provided by the FEM, a probabilistic approach will be applied. A Monte Carlo method with a meta-model will be used to evaluate the thermal stochastic output improving the current state-of-the-art of thermal predictions." Ámbito científico natural sciencesphysical sciencesclassical mechanicsfluid mechanicsfluid dynamicsengineering and technologyenvironmental engineeringenergy and fuelsnatural sciencesphysical sciencesopticsspectroscopy Programa(s) FP7-JTI - Specific Programme "Cooperation": Joint Technology Initiatives Tema(s) JTI-CS-2013-3-SAGE-06-011 - Design methods for accurate combustor wall temperature Convocatoria de propuestas SP1-JTI-CS-2013-03 Consulte otros proyectos de esta convocatoria Régimen de financiación JTI-CS - Joint Technology Initiatives - Clean Sky Coordinador TECHNISCHE UNIVERSITAT DARMSTADT Aportación de la UE € 618 385,00 Dirección KAROLINENPLATZ 5 64289 Darmstadt Alemania Ver en el mapa Región Hessen Darmstadt Darmstadt, Kreisfreie Stadt Tipo de actividad Higher or Secondary Education Establishments Contacto administrativo Melanie Meermann-Zimmermann (Dr.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos Participantes (2) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo UNIVERSITY OF SURREY Reino Unido Aportación de la UE € 233 750,00 Dirección Stag Hill GU2 7XH Guildford Ver en el mapa Región South East (England) Surrey, East and West Sussex West Surrey Tipo de actividad Higher or Secondary Education Establishments Contacto administrativo Maria Sega-Buhalis (Mrs.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos UNIVERSITAET DER BUNDESWEHR MUENCHEN Alemania Aportación de la UE € 254 971,00 Dirección WERNER HEISENBERG WEG 39 85579 Neubiberg Ver en el mapa Región Bayern Oberbayern München, Landkreis Tipo de actividad Higher or Secondary Education Establishments Contacto administrativo Elisabeth Eder (Mrs.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos