Numerical simulation of noise generated by shock (wave) and boundary layer interaction in aero-engine inlet
We utilize the nonlinear acoustic solver (NLAS) and Ffowcs-Williams/Hawkings (FW-H) equation to investigate the noise generation and radiation due to shock (wave) and boundary layer interaction (SBLI) in the inlet duct. A classical benchmark for SBLI is chosen to validate the flow features and numer...
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| Veröffentlicht in: | Acta mechanica Sinica 2022-06, Vol.38 (6), Article 321482 |
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| creator | Dai, Yuanjun An, Yiran Li, Zhi Zhang, Qunfeng |
| description | We utilize the nonlinear acoustic solver (NLAS) and Ffowcs-Williams/Hawkings (FW-H) equation to investigate the noise generation and radiation due to shock (wave) and boundary layer interaction (SBLI) in the inlet duct. A classical benchmark for SBLI is chosen to validate the flow features and numerical results show good agreement with experimental results. In the simulation of the noise generated by SBLI, the inlet buzz phenomenon is successfully observed. The oscillation of the normal shock is a kind of little buzz and the oscillation of inner shocks is a kind of big buzz with a frequency around 100 Hz. In the far-field, frequency spectrums show a dominant frequency close to the frequency of inner shocks oscillation. This indicates that the oscillation of inner shocks determines the magnitude of the overall sound pressure level (OASPL) of the far-field noise. |
| doi_str_mv | 10.1007/s10409-021-09009-5 |
| format | Article |
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A classical benchmark for SBLI is chosen to validate the flow features and numerical results show good agreement with experimental results. In the simulation of the noise generated by SBLI, the inlet buzz phenomenon is successfully observed. The oscillation of the normal shock is a kind of little buzz and the oscillation of inner shocks is a kind of big buzz with a frequency around 100 Hz. In the far-field, frequency spectrums show a dominant frequency close to the frequency of inner shocks oscillation. This indicates that the oscillation of inner shocks determines the magnitude of the overall sound pressure level (OASPL) of the far-field noise.</description><edition>English ed.</edition><identifier>ISSN: 0567-7718</identifier><identifier>EISSN: 1614-3116</identifier><identifier>DOI: 10.1007/s10409-021-09009-5</identifier><language>eng</language><publisher>Beijing: The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences</publisher><subject>Boundary layer interaction ; Classical and Continuum Physics ; Computational Intelligence ; Engine inlets ; Engineering ; Engineering Fluid Dynamics ; Far fields ; Ffowcs Williams-Hawkings equation ; Noise generation ; Research Paper ; Sound pressure ; Theoretical and Applied Mechanics</subject><ispartof>Acta mechanica Sinica, 2022-06, Vol.38 (6), Article 321482</ispartof><rights>The Chinese Society of Theoretical and Applied Mechanics and Springer-Verlag GmbH Germany, part of Springer Nature 2022</rights><rights>The Chinese Society of Theoretical and Applied Mechanics and Springer-Verlag GmbH Germany, part of Springer Nature 2022.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2345-8d679de30887d802b9920850ba38854510006b8fc6b1d27c416bd240a0858c773</citedby><cites>FETCH-LOGICAL-c2345-8d679de30887d802b9920850ba38854510006b8fc6b1d27c416bd240a0858c773</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10409-021-09009-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10409-021-09009-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51297</link.rule.ids></links><search><creatorcontrib>Dai, Yuanjun</creatorcontrib><creatorcontrib>An, Yiran</creatorcontrib><creatorcontrib>Li, Zhi</creatorcontrib><creatorcontrib>Zhang, Qunfeng</creatorcontrib><title>Numerical simulation of noise generated by shock (wave) and boundary layer interaction in aero-engine inlet</title><title>Acta mechanica Sinica</title><addtitle>Acta Mech. Sin</addtitle><description>We utilize the nonlinear acoustic solver (NLAS) and Ffowcs-Williams/Hawkings (FW-H) equation to investigate the noise generation and radiation due to shock (wave) and boundary layer interaction (SBLI) in the inlet duct. A classical benchmark for SBLI is chosen to validate the flow features and numerical results show good agreement with experimental results. In the simulation of the noise generated by SBLI, the inlet buzz phenomenon is successfully observed. The oscillation of the normal shock is a kind of little buzz and the oscillation of inner shocks is a kind of big buzz with a frequency around 100 Hz. In the far-field, frequency spectrums show a dominant frequency close to the frequency of inner shocks oscillation. This indicates that the oscillation of inner shocks determines the magnitude of the overall sound pressure level (OASPL) of the far-field noise.</description><subject>Boundary layer interaction</subject><subject>Classical and Continuum Physics</subject><subject>Computational Intelligence</subject><subject>Engine inlets</subject><subject>Engineering</subject><subject>Engineering Fluid Dynamics</subject><subject>Far fields</subject><subject>Ffowcs Williams-Hawkings equation</subject><subject>Noise generation</subject><subject>Research Paper</subject><subject>Sound pressure</subject><subject>Theoretical and Applied Mechanics</subject><issn>0567-7718</issn><issn>1614-3116</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kDtPwzAUhS0EEqXwB5gsscBguHbiR0ZU8ZIQLDBbjuOUtKld7ATUf4_bIrEx3Ye-c67uQeicwjUFkDeJQgkVAUYJVJA7foAmVNCSFJSKQzQBLiSRkqpjdJLSAqAQVNIJWr6MKxc7a3qcutXYm6ELHocW-9Alh-fOu2gG1-B6g9NHsEt8-W2-3BU2Pu_C6BsTN7g3Gxdx54cM251D57FxMRDn5513eezdcIqOWtMnd_Zbp-j9_u5t9kieXx-eZrfPxLKi5EQ1QlaNK0Ap2ShgdVUxUBxqUyjFS54fBlGr1oqaNkzakoq6YSWYDCkrZTFFF3vfdQyfo0uDXoQx-nxSMyEFV4wCzxTbUzaGlKJr9Tp2q_yNpqC3oep9qDqHqneh6q2o2ItShv3cxT_rf1Q_kkl5PQ</recordid><startdate>20220601</startdate><enddate>20220601</enddate><creator>Dai, Yuanjun</creator><creator>An, Yiran</creator><creator>Li, Zhi</creator><creator>Zhang, Qunfeng</creator><general>The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20220601</creationdate><title>Numerical simulation of noise generated by shock (wave) and boundary layer interaction in aero-engine inlet</title><author>Dai, Yuanjun ; An, Yiran ; Li, Zhi ; Zhang, Qunfeng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2345-8d679de30887d802b9920850ba38854510006b8fc6b1d27c416bd240a0858c773</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Boundary layer interaction</topic><topic>Classical and Continuum Physics</topic><topic>Computational Intelligence</topic><topic>Engine inlets</topic><topic>Engineering</topic><topic>Engineering Fluid Dynamics</topic><topic>Far fields</topic><topic>Ffowcs Williams-Hawkings equation</topic><topic>Noise generation</topic><topic>Research Paper</topic><topic>Sound pressure</topic><topic>Theoretical and Applied Mechanics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dai, Yuanjun</creatorcontrib><creatorcontrib>An, Yiran</creatorcontrib><creatorcontrib>Li, Zhi</creatorcontrib><creatorcontrib>Zhang, Qunfeng</creatorcontrib><collection>CrossRef</collection><jtitle>Acta mechanica Sinica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dai, Yuanjun</au><au>An, Yiran</au><au>Li, Zhi</au><au>Zhang, Qunfeng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical simulation of noise generated by shock (wave) and boundary layer interaction in aero-engine inlet</atitle><jtitle>Acta mechanica Sinica</jtitle><stitle>Acta Mech. Sin</stitle><date>2022-06-01</date><risdate>2022</risdate><volume>38</volume><issue>6</issue><artnum>321482</artnum><issn>0567-7718</issn><eissn>1614-3116</eissn><abstract>We utilize the nonlinear acoustic solver (NLAS) and Ffowcs-Williams/Hawkings (FW-H) equation to investigate the noise generation and radiation due to shock (wave) and boundary layer interaction (SBLI) in the inlet duct. A classical benchmark for SBLI is chosen to validate the flow features and numerical results show good agreement with experimental results. In the simulation of the noise generated by SBLI, the inlet buzz phenomenon is successfully observed. The oscillation of the normal shock is a kind of little buzz and the oscillation of inner shocks is a kind of big buzz with a frequency around 100 Hz. In the far-field, frequency spectrums show a dominant frequency close to the frequency of inner shocks oscillation. This indicates that the oscillation of inner shocks determines the magnitude of the overall sound pressure level (OASPL) of the far-field noise.</abstract><cop>Beijing</cop><pub>The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences</pub><doi>10.1007/s10409-021-09009-5</doi><edition>English ed.</edition></addata></record> |
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| subjects | Boundary layer interaction Classical and Continuum Physics Computational Intelligence Engine inlets Engineering Engineering Fluid Dynamics Far fields Ffowcs Williams-Hawkings equation Noise generation Research Paper Sound pressure Theoretical and Applied Mechanics |
| title | Numerical simulation of noise generated by shock (wave) and boundary layer interaction in aero-engine inlet |
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