Abstract View references (10) Acoustic liners can represent an effective strategy for noise reduction in aero engines. To assess the sound absorption effectiveness under representative operating conditions and to validate numerical methods, the treatments shall be characterized by using grazing flow rigs. Purpose of this survey is to describe the design solutions adopted in a brand-new test rig aimed at evaluating the performance of the liners under testing conditions representative of the turbine exhaust in an aircraft engine, i.e. high flow speed and temperature. The main components of the rig have been numerically investigated from an aerodynamic, thermo-structural and acoustic perspective. The relevant outcomes are reported in the paper. After the rig has been manufactured and assembled, a preliminary commissioning has been performed to verify the rig operability and performance, with special focus on the acoustic behavior. © 2019 European Turbomachinery Society. All rights reserved.
A novel grazing flow rig for acoustic liner investigations / Taddei F.; De Lucia M.; Pourreza A.; Rashidi H.; Pierucci G.; Messeri M.; Fagioli F.; Salvestroni M.; Torzo D.. - ELETTRONICO. - (2019), pp. 2552-2556. (Intervento presentato al convegno 13th European Turbomachinery Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2019 tenutosi a Lausanne; Switzerland nel through 12 April 2019).
A novel grazing flow rig for acoustic liner investigations
Taddei F.
Writing – Original Draft Preparation
;De Lucia M.Supervision
;Pourreza A.Writing – Original Draft Preparation
;Rashidi H.;Pierucci G.;Messeri M.;Fagioli F.;Salvestroni M.;
2019
Abstract
Abstract View references (10) Acoustic liners can represent an effective strategy for noise reduction in aero engines. To assess the sound absorption effectiveness under representative operating conditions and to validate numerical methods, the treatments shall be characterized by using grazing flow rigs. Purpose of this survey is to describe the design solutions adopted in a brand-new test rig aimed at evaluating the performance of the liners under testing conditions representative of the turbine exhaust in an aircraft engine, i.e. high flow speed and temperature. The main components of the rig have been numerically investigated from an aerodynamic, thermo-structural and acoustic perspective. The relevant outcomes are reported in the paper. After the rig has been manufactured and assembled, a preliminary commissioning has been performed to verify the rig operability and performance, with special focus on the acoustic behavior. © 2019 European Turbomachinery Society. All rights reserved.File | Dimensione | Formato | |
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ETC2019-347 - A NOVEL GRAZING FLOW RIG FOR ACOUSTIC LINER INVESTIGATIONS - full paper.pdf
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