Theoretical and numerical method in aeroacoustics
The paper deals with the mathematical and numerical modeling of the aerodynamic noisegenerated by the fluid flow interaction with the solid structure of a rotor blade.Our analysis use Lighthill’s acoustic analogy. Lighthill idea was to express the fundamental equationsof motion into a wave equation...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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National Institute for Aerospace Research “Elie Carafoli” - INCAS
2010-06-01
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| Series: | INCAS Bulletin |
| Subjects: | |
| Online Access: | http://bulletin.incas.ro/files/maria_alexandrescu_v2no2_full.pdf |
| _version_ | 1819078705996103680 |
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| author | Nicuşor ALEXANDRESCU Maria ALEXANDRESCU |
| author_facet | Nicuşor ALEXANDRESCU Maria ALEXANDRESCU |
| author_sort | Nicuşor ALEXANDRESCU |
| collection | DOAJ |
| description | The paper deals with the mathematical and numerical modeling of the aerodynamic noisegenerated by the fluid flow interaction with the solid structure of a rotor blade.Our analysis use Lighthill’s acoustic analogy. Lighthill idea was to express the fundamental equationsof motion into a wave equation for acoustic fluctuation with a source term on the right-hand side. Theobtained wave equation is solved numerically by the spatial discretization. The method is applied inthe case of monopole source placed in different points of blade surfaces to find this effect of noisepropagation. |
| first_indexed | 2024-12-21T19:17:21Z |
| format | Article |
| id | doaj.art-3a8ce0a908b84a9787622e791003b854 |
| institution | Directory Open Access Journal |
| issn | 2066-8201 2247-4528 |
| language | English |
| last_indexed | 2024-12-21T19:17:21Z |
| publishDate | 2010-06-01 |
| publisher | National Institute for Aerospace Research “Elie Carafoli” - INCAS |
| record_format | Article |
| series | INCAS Bulletin |
| spelling | doaj.art-3a8ce0a908b84a9787622e791003b8542022-12-21T18:53:02ZengNational Institute for Aerospace Research “Elie Carafoli” - INCASINCAS Bulletin2066-82012247-45282010-06-012231310.13111/2066-8201.2010.2.2.1Theoretical and numerical method in aeroacousticsNicuşor ALEXANDRESCUMaria ALEXANDRESCUThe paper deals with the mathematical and numerical modeling of the aerodynamic noisegenerated by the fluid flow interaction with the solid structure of a rotor blade.Our analysis use Lighthill’s acoustic analogy. Lighthill idea was to express the fundamental equationsof motion into a wave equation for acoustic fluctuation with a source term on the right-hand side. Theobtained wave equation is solved numerically by the spatial discretization. The method is applied inthe case of monopole source placed in different points of blade surfaces to find this effect of noisepropagation.http://bulletin.incas.ro/files/maria_alexandrescu_v2no2_full.pdfnoiseaero-acousticdiscretization |
| spellingShingle | Nicuşor ALEXANDRESCU Maria ALEXANDRESCU Theoretical and numerical method in aeroacoustics INCAS Bulletin noise aero-acoustic discretization |
| title | Theoretical and numerical method in aeroacoustics |
| title_full | Theoretical and numerical method in aeroacoustics |
| title_fullStr | Theoretical and numerical method in aeroacoustics |
| title_full_unstemmed | Theoretical and numerical method in aeroacoustics |
| title_short | Theoretical and numerical method in aeroacoustics |
| title_sort | theoretical and numerical method in aeroacoustics |
| topic | noise aero-acoustic discretization |
| url | http://bulletin.incas.ro/files/maria_alexandrescu_v2no2_full.pdf |
| work_keys_str_mv | AT nicusoralexandrescu theoreticalandnumericalmethodinaeroacoustics AT mariaalexandrescu theoreticalandnumericalmethodinaeroacoustics |