Eigenmode analysis for turbomachinery applications
The numerical computation of unsteady eigenmodes superimposed on an annular mean flow that is uniform axially and circumferentially, but nonuniform in the radial direction, is discussed. Both inviscid and viscous flows are considered, and attention is paid to the separation of the eigenmodes into ac...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2005
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| _version_ | 1797070151358611456 |
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| author | Moinier, P Giles, M |
| author_facet | Moinier, P Giles, M |
| author_sort | Moinier, P |
| collection | OXFORD |
| description | The numerical computation of unsteady eigenmodes superimposed on an annular mean flow that is uniform axially and circumferentially, but nonuniform in the radial direction, is discussed. Both inviscid and viscous flows are considered, and attention is paid to the separation of the eigenmodes into acoustic, entropy, and vorticity modes. The numerical computations are validated by comparison to analytic test cases, and results are presented for more realistic engineering applications, showing the utility of the approach for postprocessing and for the construction of nonreflecting boundary conditions. |
| first_indexed | 2024-03-06T22:34:53Z |
| format | Journal article |
| id | oxford-uuid:598c788b-73d7-4d54-8e0e-45deeb5f5cd8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:34:53Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:598c788b-73d7-4d54-8e0e-45deeb5f5cd82022-03-26T17:10:23ZEigenmode analysis for turbomachinery applicationsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:598c788b-73d7-4d54-8e0e-45deeb5f5cd8EnglishSymplectic Elements at Oxford2005Moinier, PGiles, MThe numerical computation of unsteady eigenmodes superimposed on an annular mean flow that is uniform axially and circumferentially, but nonuniform in the radial direction, is discussed. Both inviscid and viscous flows are considered, and attention is paid to the separation of the eigenmodes into acoustic, entropy, and vorticity modes. The numerical computations are validated by comparison to analytic test cases, and results are presented for more realistic engineering applications, showing the utility of the approach for postprocessing and for the construction of nonreflecting boundary conditions. |
| spellingShingle | Moinier, P Giles, M Eigenmode analysis for turbomachinery applications |
| title | Eigenmode analysis for turbomachinery applications |
| title_full | Eigenmode analysis for turbomachinery applications |
| title_fullStr | Eigenmode analysis for turbomachinery applications |
| title_full_unstemmed | Eigenmode analysis for turbomachinery applications |
| title_short | Eigenmode analysis for turbomachinery applications |
| title_sort | eigenmode analysis for turbomachinery applications |
| work_keys_str_mv | AT moinierp eigenmodeanalysisforturbomachineryapplications AT gilesm eigenmodeanalysisforturbomachineryapplications |