Objective To fulfill the SFWA objectives of reduced engine noise, a major effort is required towards innovative noise control methodologies and improved predictive capability of the CFD/CAA software systems. The present project combines an experimental investigation of two, low TRL flow/noise control options, associated with an innovative and highly efficient numerical CFD/CAA approach. On the experimental side, the first noise control method, based on porous treatment of the blades, will be tested in an anechoic facility. The associated acoustic impedance will be determined as input for the CFD/CAA approach. The second concept relies on active blade surface to control the front rotor wake by actuators on the front rotor blade, possibly DBD plasma actuators. The wake characteristics behind the actuated blades will be tested in a cascade facility. On the numerical side, the DINNO-CROR proposal is based on an advanced new approach for the CFD determination of the noise sources and on the acoustic analogy for far-field noise propagation. While the CAA approach relies on a time domain formulation of the FW-H equations, the critical issue remains to deliver fast and accurate unsteady CFD-solutions for prediction of the noise sources. The DINNO-CROR project will apply the nonlinear harmonic method (NLH) which allows a gain in CPU compared to current CFD methodologies, of close to three orders of magnitude. This method has been largely validated and applied on multistage turbines and compressors, and its extension to CROR’s has recently been initiated. In the present project it will be further extended to include the physics of the investigated noise control systems. In TASK 2, the NLH methodology will be extended to model the interaction of the rotor with the pylon. For Concept 1, the boundary layer absorption will be modeled by introducing an impedance boundary conditions on the pylon; while for Concept 2, the non-radial pylon will be modeled directly as a solid surface. Fields of science engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarecomputer processorsnatural sciencescomputer and information sciencessoftwaresoftware applicationssystem softwarenatural sciencesearth and related environmental sciencesenvironmental sciencespollution Programme(s) FP7-JTI - Specific Programme "Cooperation": Joint Technology Initiatives Topic(s) JTI-CS-2009-1-SFWA-02-001 - Design of innovative CROR blade and pylon Call for proposal SP1-JTI-CS-2009-01 See other projects for this call Funding Scheme JTI-CS - Joint Technology Initiatives - Clean Sky Coordinator CADENCE DESIGN SYSTEMS BELGIUM Address Chaussee de la hulpe 187-189 1170 Bruxelles / brussel Belgium See on map Region Région de Bruxelles-Capitale/Brussels Hoofdstedelijk Gewest Région de Bruxelles-Capitale/ Brussels Hoofdstedelijk Gewest Arr. de Bruxelles-Capitale/Arr. Brussel-Hoofdstad Activity type Private for-profit entities (excluding Higher or Secondary Education Establishments) Administrative Contact Charles Hirsch (Prof.) Links Contact the organisation Opens in new window Website Opens in new window EU contribution No data Participants (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all VON KARMAN INSTITUTE FOR FLUID DYNAMICS Belgium EU contribution € 150 000,00 Address Waterloose steenweg, 72 1640 Sint-genesius-rode See on map Region Vlaams Gewest Prov. Vlaams-Brabant Arr. Halle-Vilvoorde Activity type Research Organisations Administrative Contact Jerome Anthoine (Prof.) Links Contact the organisation Opens in new window Website Opens in new window Other funding No data
