Effects of the foam metal casing treatment on aerodynamic stability and aerocoustic noise in an axial flow compressor

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dc.contributor.authorSun D
dc.contributor.authorLi J
dc.contributor.authorXu R
dc.contributor.authorDong X
dc.contributor.authorZhao D
dc.contributor.authorSun X
dc.contributor.authorZHAO, DAN
dc.date.accessioned2021-06-27T22:23:06Z
dc.date.available2021-06-27T22:23:06Z
dc.date.issued2021en
dc.date.updated2021-06-05T04:40:07Z
dc.description.abstractA kind of foam metal casing treatment (FMCT) is proposed and experimentally tested on a low-speed axial flow compressor in this work. Foam metal is a foam-like substance with a lightweight structure but a certain strength. Both time-mean and high-response instrumentation are applied to capture the steady and unsteady performances of the compressor. Initially, parametric experimental measurements on axial location of foam metal over rotors are performed with respect to stability enhancement and noise reduction. It is found that the stall margin improvement (SMI) and the aerodynamic efficiency loss are functions of the axial location of the foam metal. Particularly, the SMI maxima appears at CT7 with a certain amount of aerodynamic efficiency loss. In analyzing the results measured over and downstream of the rotor, it is suggested that the release of rotor tip loading may be a stability improvement mechanism of FMCTs. Furthermore, comparison in the stall inception process of the axial flow between the compressor with the solid-wall and the implementation configuration shows that, in solid-wall casing condition, the compressor experiences a spike-type stall inception, however in CT7, the compressor goes through a modal-type process. Finally, conclusions and suggestions are given based on the findings.en
dc.identifier.citationSun D, Li J, Xu R, Dong X, Zhao D, Sun X (2021). Effects of the foam metal casing treatment on aerodynamic stability and aerocoustic noise in an axial flow compressor. Aerospace Science and Technology. 115. 106793-106793.en
dc.identifier.doihttp://doi.org/10.1016/j.ast.2021.106793
dc.identifier.issn1270-9638
dc.identifier.urihttps://hdl.handle.net/10092/102118
dc.identifier.urihttp://dx.doi.org/10.26021/11173
dc.languageen
dc.language.isoen
dc.publisherElsevier BVen
dc.rightsAll rights reserved unless otherwise stateden
dc.rights.urihttp://hdl.handle.net/10092/17651en
dc.subject.anzsrc0901 Aerospace Engineeringen
dc.subject.anzsrc0913 Mechanical Engineeringen
dc.subject.anzsrcFields of Research::40 - Engineering::4001 - Aerospace engineering::400101 - Aerospace materialsen
dc.subject.anzsrcFields of Research::40 - Engineering::4016 - Materials engineering::401607 - Metals and alloy materialsen
dc.subject.anzsrcFields of Research::40 - Engineering::4017 - Mechanical engineering::401701 - Acoustics and noise control (excl. architectural acoustics)en
dc.subject.anzsrcFields of Research::40 - Engineering::4001 - Aerospace engineering::400105 - Flight dynamicsen
dc.subject.anzsrcFields of Research::40 - Engineering::4001 - Aerospace engineering::400103 - Aircraft performance and flight control systemsen
dc.titleEffects of the foam metal casing treatment on aerodynamic stability and aerocoustic noise in an axial flow compressoren
dc.typeJournal Articleen
uc.collegeFaculty of Engineering
uc.departmentMechanical Engineering
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