Aeroacoustic interaction in high-velocity jet with a thin obstacle
The work is devoted to the investigation of the influence of the thin obstacle presence in the high-speed jet flow on its characteristics. Interest in this phenomenon is caused by the fact that during the transonic jet flow parameters probe measurements it was noted, that a growth of low-frequency p...
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| creator | Gubanov, D. A. Zapryagaev, V. I. Kiselev, N. P. Kundasev, S. G. |
| description | The work is devoted to the investigation of the influence of the thin obstacle presence in the high-speed jet flow on its characteristics. Interest in this phenomenon is caused by the fact that during the transonic jet flow parameters probe measurements it was noted, that a growth of low-frequency pulsations, tonal and discrete tones appear in the acoustic noise when a pylon is immersed. It is established that discrete and tonal components change their frequency as the distance from a thin obstacle to the nozzle exit is changed. The existence of a mechanism for transferring perturbations from the pylon is shown, which consists in the fact that pulsations from the pylon close the self-oscillating loop through acoustic radiation propagating from the jet through the surrounding medium to jet root. |
| doi_str_mv | 10.1063/1.5065296 |
| format | Conference Proceeding |
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A. ; Zapryagaev, V. I. ; Kiselev, N. P. ; Kundasev, S. G.</creator><contributor>Fomin, Vasily</contributor><creatorcontrib>Gubanov, D. A. ; Zapryagaev, V. I. ; Kiselev, N. P. ; Kundasev, S. G. ; Fomin, Vasily</creatorcontrib><description>The work is devoted to the investigation of the influence of the thin obstacle presence in the high-speed jet flow on its characteristics. Interest in this phenomenon is caused by the fact that during the transonic jet flow parameters probe measurements it was noted, that a growth of low-frequency pulsations, tonal and discrete tones appear in the acoustic noise when a pylon is immersed. It is established that discrete and tonal components change their frequency as the distance from a thin obstacle to the nozzle exit is changed. 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G.</creatorcontrib><title>Aeroacoustic interaction in high-velocity jet with a thin obstacle</title><title>AIP Conference Proceedings</title><description>The work is devoted to the investigation of the influence of the thin obstacle presence in the high-speed jet flow on its characteristics. Interest in this phenomenon is caused by the fact that during the transonic jet flow parameters probe measurements it was noted, that a growth of low-frequency pulsations, tonal and discrete tones appear in the acoustic noise when a pylon is immersed. It is established that discrete and tonal components change their frequency as the distance from a thin obstacle to the nozzle exit is changed. The existence of a mechanism for transferring perturbations from the pylon is shown, which consists in the fact that pulsations from the pylon close the self-oscillating loop through acoustic radiation propagating from the jet through the surrounding medium to jet root.</description><subject>Acoustic noise</subject><subject>Acoustic propagation</subject><subject>Aeroacoustics</subject><subject>Jet flow</subject><subject>Nozzles</subject><subject>Sound waves</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2018</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNp9kM1LAzEQxYMoWKsH_4MFb8LWTD422WMtfkHBi4K3MJtm3ZTarEla6X_vlha8eZoH8-PNvEfINdAJ0IrfwUTSSrK6OiEjkBJKVUF1SkaU1qJkgn-ck4uUlpSyWik9IvdTFwPasEnZ28Kvs4tosw_rQRed_-zKrVsF6_OuWLpc_PjcFVjkbtiGJmW0K3dJzlpcJXd1nGPy_vjwNnsu569PL7PpvOyZ1rmUQjbc2oYKoI1uUDMr6kbbViuODFupFy3lleAtaqwlggIGTnOttFoAMD4mNwffPobvjUvZLMMmroeThgHTjMpa8IG6PVBpeBr3SUwf_RfGnQFq9h0ZMMeO_oO3If6Bpl-0_BdZ8Was</recordid><startdate>20181102</startdate><enddate>20181102</enddate><creator>Gubanov, D. 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A.</creatorcontrib><creatorcontrib>Zapryagaev, V. I.</creatorcontrib><creatorcontrib>Kiselev, N. P.</creatorcontrib><creatorcontrib>Kundasev, S. G.</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gubanov, D. A.</au><au>Zapryagaev, V. I.</au><au>Kiselev, N. P.</au><au>Kundasev, S. G.</au><au>Fomin, Vasily</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Aeroacoustic interaction in high-velocity jet with a thin obstacle</atitle><btitle>AIP Conference Proceedings</btitle><date>2018-11-02</date><risdate>2018</risdate><volume>2027</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>The work is devoted to the investigation of the influence of the thin obstacle presence in the high-speed jet flow on its characteristics. Interest in this phenomenon is caused by the fact that during the transonic jet flow parameters probe measurements it was noted, that a growth of low-frequency pulsations, tonal and discrete tones appear in the acoustic noise when a pylon is immersed. It is established that discrete and tonal components change their frequency as the distance from a thin obstacle to the nozzle exit is changed. The existence of a mechanism for transferring perturbations from the pylon is shown, which consists in the fact that pulsations from the pylon close the self-oscillating loop through acoustic radiation propagating from the jet through the surrounding medium to jet root.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5065296</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP Conference Proceedings, 2018, Vol.2027 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_5065296 |
| source | AIP Journals Complete |
| subjects | Acoustic noise Acoustic propagation Aeroacoustics Jet flow Nozzles Sound waves |
| title | Aeroacoustic interaction in high-velocity jet with a thin obstacle |
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