Objective Lean burn combustor technologies introduced to reduce NOx emissions are proving to be inherently noisier than conventional combustors, generating broadband noise that can be heard external to the aircraft. Without careful design and optimisation, there is a danger the low emission cores will cause the aircraft engines to exceed the Horizon 2020 noise requirement. The research in the CORNET proposal is aimed at understanding the flow physics involved in the generation and propagation of core noise in low emission cores. It includes both the ‘direct noise’ of combustion, pressure waves generated directly by unsteadiness in the rate of combustion, and the ‘indirect noise’ generated as entropy waves accelerate through the Nozzle Guide Vanes (NGVs) at combustor exit and propagate through turbine blade rows. Large Eddy Simulations of a combustor with a realistic engine fuel injector operating at representative engine conditions are validated through high-speed optical diagnostics applied to a high-pressure rig. The combustor modelling gives the entropy and acoustic waves incident on the NGVs. The generation of in-direct noise is predicted through unsteady high-resolution computations of the interaction of these entropy and acoustic waves within a high-pressure turbine stage. The new understanding will be captured in an advanced analytical combustion noise prediction tool that can be readily used by industry. Fields of science engineering and technologymechanical engineeringvehicle engineeringaerospace engineeringaircraftnatural sciencesphysical sciencesclassical mechanicsfluid mechanicsfluid dynamicsnatural sciencesphysical sciencesopticsspectroscopyabsorption spectroscopyengineering and technologyenvironmental engineeringenergy and fuelsnatural sciencesphysical sciencesopticslaser physics Programme(s) H2020-EU.3.4. - SOCIETAL CHALLENGES - Smart, Green And Integrated Transport Main Programme H2020-EU.3.4.5.5. - ITD Engines Topic(s) JTI-CS2-2014-CFP01-ENG-03-02 - Advanced analytical tool for the understanding and the prediction of core noise for large civil aero engine with low emission core Call for proposal H2020-CS2-CFP01-2014-01 See other projects for this call Funding Scheme CS2-RIA - Research and Innovation action Coordinator THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE Net EU contribution € 519 988,75 Address TRINITY LANE THE OLD SCHOOLS CB2 1TN Cambridge United Kingdom See on map Region East of England East Anglia Cambridgeshire CC Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 519 988,75 Participants (2) Sort alphabetically Sort by Net EU contribution Expand all Collapse all DEUTSCHES ZENTRUM FUR LUFT - UND RAUMFAHRT EV Germany Net EU contribution € 377 783,50 Address LINDER HOHE 51147 Koln See on map Region Nordrhein-Westfalen Köln Köln, Kreisfreie Stadt Activity type Research Organisations Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 377 783,50 TECHNISCHE UNIVERSITAT DARMSTADT Germany Net EU contribution € 100 000,00 Address KAROLINENPLATZ 5 64289 Darmstadt See on map Region Hessen Darmstadt Darmstadt, Kreisfreie Stadt Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 100 000,00
