Prediction of helicopter rotor noise in hover
Two mathematical models are used in this work to estimate the acoustics of a hovering main rotor. The first model is based on the Ffowcs Williams-Howkings equations using the formulation of Farassat. An analytical approach is followed for this model, to determine the thickness and load noise contrib...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2015-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20159202042 |
| _version_ | 1818739258940194816 |
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| author | Kusyumov A.N. Mikhailov S.A. Garipova L.I. Batrakov A.S. Barakos G. |
| author_facet | Kusyumov A.N. Mikhailov S.A. Garipova L.I. Batrakov A.S. Barakos G. |
| author_sort | Kusyumov A.N. |
| collection | DOAJ |
| description | Two mathematical models are used in this work to estimate the acoustics of a hovering main rotor. The first model is based on the Ffowcs Williams-Howkings equations using the formulation of Farassat. An analytical approach is followed for this model, to determine the thickness and load noise contributions of the rotor blade in hover. The second approach allows using URANS and RANS CFD solutions and based on numerical solution of the Ffowcs Williams-Howkings equations. The employed test cases correspond to a model rotor available at the KNRTUKAI aerodynamics laboratory. The laboratory is equipped with a system of acoustic measurements, and comparisons between predictions and measurements are to be attempted as part of this work. |
| first_indexed | 2024-12-18T01:21:59Z |
| format | Article |
| id | doaj.art-c29037638c8248d088c3414498ca9c56 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-18T01:21:59Z |
| publishDate | 2015-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-c29037638c8248d088c3414498ca9c562022-12-21T21:25:49ZengEDP SciencesEPJ Web of Conferences2100-014X2015-01-01920204210.1051/epjconf/20159202042epjconf_efm2014_02042Prediction of helicopter rotor noise in hoverKusyumov A.N.0Mikhailov S.A.1Garipova L.I.2Batrakov A.S.3Barakos G.4Kazan National Research Technical University n.a. A. N. Tupolev (KNRTU-KAI)Kazan National Research Technical University n.a. A. N. Tupolev (KNRTU-KAI)Kazan National Research Technical University n.a. A. N. Tupolev (KNRTU-KAI)Kazan National Research Technical University n.a. A. N. Tupolev (KNRTU-KAI)University of LiverpoolTwo mathematical models are used in this work to estimate the acoustics of a hovering main rotor. The first model is based on the Ffowcs Williams-Howkings equations using the formulation of Farassat. An analytical approach is followed for this model, to determine the thickness and load noise contributions of the rotor blade in hover. The second approach allows using URANS and RANS CFD solutions and based on numerical solution of the Ffowcs Williams-Howkings equations. The employed test cases correspond to a model rotor available at the KNRTUKAI aerodynamics laboratory. The laboratory is equipped with a system of acoustic measurements, and comparisons between predictions and measurements are to be attempted as part of this work.http://dx.doi.org/10.1051/epjconf/20159202042 |
| spellingShingle | Kusyumov A.N. Mikhailov S.A. Garipova L.I. Batrakov A.S. Barakos G. Prediction of helicopter rotor noise in hover EPJ Web of Conferences |
| title | Prediction of helicopter rotor noise in hover |
| title_full | Prediction of helicopter rotor noise in hover |
| title_fullStr | Prediction of helicopter rotor noise in hover |
| title_full_unstemmed | Prediction of helicopter rotor noise in hover |
| title_short | Prediction of helicopter rotor noise in hover |
| title_sort | prediction of helicopter rotor noise in hover |
| url | http://dx.doi.org/10.1051/epjconf/20159202042 |
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