Study of Transonic Tone in Supersonic Nozzle
The present paper describes experimental and numerical works to investigate noise phenomenon in supersonic flow that is discharged from a convergent-divergent nozzle. The noise phenomenon of flow is generated by an emission of 'transonic tones'. The results of obtaining show that the frequ...
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| Veröffentlicht in: | Nihon Kikai Gakkai rombunshuu. B hen 2008/11/25, Vol.74(747), pp.2352-2357 |
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| container_title | Nihon Kikai Gakkai rombunshuu. B hen |
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| creator | JUNG, Sungjae YONAMINE, Makiko KWEON, Yonghun DODO, Yusuke AOKI, Toshiyuki |
| description | The present paper describes experimental and numerical works to investigate noise phenomenon in supersonic flow that is discharged from a convergent-divergent nozzle. The noise phenomenon of flow is generated by an emission of 'transonic tones'. The results of obtaining show that the frequency of a transonic tone that differs from the frequency of a screech tone due to the shock-cell structures in a jet, and originates in the shock wave in the nozzle increases in proportion to the nozzle pressure ratio. The transonic tone of high-order has the directivity in the direction of the flow. As for the frequency of the transonic tone, the separated zone was calculated by using a simple flow model by whom the propagate perturbation was considered. The calculation results by the model were corresponding to the present experimental results well. |
| doi_str_mv | 10.1299/kikaib.74.2352 |
| format | Article |
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The noise phenomenon of flow is generated by an emission of 'transonic tones'. The results of obtaining show that the frequency of a transonic tone that differs from the frequency of a screech tone due to the shock-cell structures in a jet, and originates in the shock wave in the nozzle increases in proportion to the nozzle pressure ratio. The transonic tone of high-order has the directivity in the direction of the flow. As for the frequency of the transonic tone, the separated zone was calculated by using a simple flow model by whom the propagate perturbation was considered. 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The calculation results by the model were corresponding to the present experimental results well.</description><subject>Compressible Flow</subject><subject>Noise</subject><subject>Shock Wave</subject><subject>Supersonic Flow</subject><subject>Transonic Resonance</subject><issn>0387-5016</issn><issn>1884-8346</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNo9kD1PwzAURS0EElXpypyJiQTbz7X9RlTxJRAMLbPlJA6Ypkmxk6H99TRK6XSlp3Ouni4h14xmjCPerf3a-jxTIuMw52dkwrQWqQYhz8mEglbpnDJ5SWYx-pxSiiAR1ITcLru-3CVtlayCbWLb-CJZtY1LfJMs-60L4-m93e9rd0UuKltHNzvmlHw-PqwWz-nbx9PL4v4tLYDOeYpKoUUOiEwyTa3MrYOqFMzJUkvQOc8pSF0pLtGVTBze0RpKrRCs5QJhSm7G3m1of3sXO7PxsXB1bRvX9tEAR6kUVQcwG8EitDEGV5lt8BsbdoZRM-xixl2MEmbY5SC8jsJP7OyXO-E2dL6o3RFnqHBQlFD_Mdgnqvi2wbgG_gCLDW7U</recordid><startdate>2008</startdate><enddate>2008</enddate><creator>JUNG, Sungjae</creator><creator>YONAMINE, Makiko</creator><creator>KWEON, Yonghun</creator><creator>DODO, Yusuke</creator><creator>AOKI, Toshiyuki</creator><general>The Japan Society of Mechanical Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope></search><sort><creationdate>2008</creationdate><title>Study of Transonic Tone in Supersonic Nozzle</title><author>JUNG, Sungjae ; YONAMINE, Makiko ; KWEON, Yonghun ; DODO, Yusuke ; AOKI, Toshiyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3052-9779a9239916180a6bae3fd41e6d8638b2b0368f7269ed14000883d8793aa2493</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>2008</creationdate><topic>Compressible Flow</topic><topic>Noise</topic><topic>Shock Wave</topic><topic>Supersonic Flow</topic><topic>Transonic Resonance</topic><toplevel>online_resources</toplevel><creatorcontrib>JUNG, Sungjae</creatorcontrib><creatorcontrib>YONAMINE, Makiko</creatorcontrib><creatorcontrib>KWEON, Yonghun</creatorcontrib><creatorcontrib>DODO, Yusuke</creatorcontrib><creatorcontrib>AOKI, Toshiyuki</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><jtitle>Nihon Kikai Gakkai rombunshuu. B hen</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>JUNG, Sungjae</au><au>YONAMINE, Makiko</au><au>KWEON, Yonghun</au><au>DODO, Yusuke</au><au>AOKI, Toshiyuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study of Transonic Tone in Supersonic Nozzle</atitle><jtitle>Nihon Kikai Gakkai rombunshuu. B hen</jtitle><addtitle>JSMET</addtitle><date>2008</date><risdate>2008</risdate><volume>74</volume><issue>747</issue><spage>2352</spage><epage>2357</epage><pages>2352-2357</pages><issn>0387-5016</issn><eissn>1884-8346</eissn><abstract>The present paper describes experimental and numerical works to investigate noise phenomenon in supersonic flow that is discharged from a convergent-divergent nozzle. The noise phenomenon of flow is generated by an emission of 'transonic tones'. The results of obtaining show that the frequency of a transonic tone that differs from the frequency of a screech tone due to the shock-cell structures in a jet, and originates in the shock wave in the nozzle increases in proportion to the nozzle pressure ratio. The transonic tone of high-order has the directivity in the direction of the flow. As for the frequency of the transonic tone, the separated zone was calculated by using a simple flow model by whom the propagate perturbation was considered. The calculation results by the model were corresponding to the present experimental results well.</abstract><pub>The Japan Society of Mechanical Engineers</pub><doi>10.1299/kikaib.74.2352</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| issn | 0387-5016 1884-8346 |
| language | eng ; jpn |
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| source | J-STAGE Free; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Compressible Flow Noise Shock Wave Supersonic Flow Transonic Resonance |
| title | Study of Transonic Tone in Supersonic Nozzle |
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