{"id":"https://openalex.org/W2086036670","doi":"https://doi.org/10.1260/1475-472x.7.3.199","title":"On Evolution and Acoustic Characteristics of a Compressible Vortex Ring","display_name":"On Evolution and Acoustic Characteristics of a Compressible Vortex Ring","publication_year":2008,"publication_date":"2008-09-01","ids":{"openalex":"https://openalex.org/W2086036670","doi":"https://doi.org/10.1260/1475-472x.7.3.199","mag":"2086036670"},"language":"en","primary_location":{"id":"doi:10.1260/1475-472x.7.3.199","doi":"https://doi.org/10.1260/1475-472x.7.3.199","is_oa":false,"landing_page_url":"https://doi.org/10.1260/1475-472x.7.3.199","pdf_url":null,"source":{"id":"https://openalex.org/S54474125","display_name":"International Journal of Aeroacoustics","issn_l":"1475-472X","issn":["1475-472X","2048-4003"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320017","host_organization_name":"SAGE Publishing","host_organization_lineage":["https://openalex.org/P4310320017"],"host_organization_lineage_names":["SAGE Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Aeroacoustics","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5067746064","display_name":"Murugan Thangadurai","orcid":"https://orcid.org/0000-0001-6782-5451","observed_orcids":["https://orcid.org/0000-0001-6782-5451"]},"institutions":[{"id":"https://openalex.org/I94234084","display_name":"Indian Institute of Technology Kanpur","ror":"https://ror.org/05pjsgx75","country_code":"IN","type":"education","lineage":["https://openalex.org/I94234084"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Thangadurai Murugan","raw_affiliation_strings":["Department of Aerospace Engineering, Indian Institute of Technology Kanpur, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Aerospace Engineering, Indian Institute of Technology Kanpur, India","institution_ids":["https://openalex.org/I94234084"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101609244","display_name":"Debopam Das","orcid":"https://orcid.org/0000-0002-1536-8532","observed_orcids":["https://orcid.org/0000-0002-1536-8532"]},"institutions":[{"id":"https://openalex.org/I94234084","display_name":"Indian Institute of Technology Kanpur","ror":"https://ror.org/05pjsgx75","country_code":"IN","type":"education","lineage":["https://openalex.org/I94234084"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Debopam Das","raw_affiliation_strings":["Department of Aerospace Engineering, Indian Institute of Technology Kanpur, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Aerospace Engineering, Indian Institute of Technology Kanpur, India","institution_ids":["https://openalex.org/I94234084"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5101609244"],"corresponding_institution_ids":["https://openalex.org/I94234084"],"apc_list":{"value":4150,"currency":"USD","value_usd":4150},"apc_paid":null,"fwci":3.3563,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.91935153,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"7","issue":"3-4","first_page":"199","last_page":"222"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11008","display_name":"Aerodynamics and Acoustics in Jet Flows","score":0.9970999956130981,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11008","display_name":"Aerodynamics and Acoustics in Jet Flows","score":0.9970999956130981,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10360","display_name":"Fluid Dynamics and Turbulent Flows","score":0.0010999999940395355,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10173","display_name":"Computational Fluid Dynamics and Aerodynamics","score":0.0008999999845400453,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/vortex-ring-formation","display_name":"vortex ring formation","score":0.6819999814033508},{"id":"https://openalex.org/keywords/shock-wave-diffraction","display_name":"shock wave diffraction","score":0.6460000276565552},{"id":"https://openalex.org/keywords/shear-layer-vortices","display_name":"shear layer vortices","score":0.8809999823570251},{"id":"https://openalex.org/keywords/sound-directivity","display_name":"sound directivity","score":0.7889999747276306},{"id":"https://openalex.org/keywords/wavelet-analysis","display_name":"wavelet analysis","score":0.6809999942779541},{"id":"https://openalex.org/keywords/shock-mach-number","display_name":"shock Mach number","score":0.6110000014305115}],"concepts":[{"id":"https://openalex.org/C168475990","wikidata":"https://www.wikidata.org/wiki/Q1030571","display_name":"Vortex ring","level":3,"score":0.7771626710891724},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6830621957778931},{"id":"https://openalex.org/C140820882","wikidata":"https://www.wikidata.org/wiki/Q732722","display_name":"Vortex","level":2,"score":0.635418176651001},{"id":"https://openalex.org/C165231844","wikidata":"https://www.wikidata.org/wiki/Q160669","display_name":"Mach number","level":2,"score":0.5922214984893799},{"id":"https://openalex.org/C119947313","wikidata":"https://www.wikidata.org/wiki/Q5596635","display_name":"Jet (fluid)","level":2,"score":0.5850657224655151},{"id":"https://openalex.org/C122881758","wikidata":"https://www.wikidata.org/wiki/Q2352496","display_name":"Shock tube","level":3,"score":0.5097350478172302},{"id":"https://openalex.org/C2781300812","wikidata":"https://www.wikidata.org/wiki/Q178061","display_name":"Shock (circulatory)","level":2,"score":0.5089554786682129},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.48650115728378296},{"id":"https://openalex.org/C200902532","wikidata":"https://www.wikidata.org/wiki/Q1699956","display_name":"Vortex tube","level":3,"score":0.4650595784187317},{"id":"https://openalex.org/C28317120","wikidata":"https://www.wikidata.org/wiki/Q975211","display_name":"Trailing edge","level":2,"score":0.4387779235839844},{"id":"https://openalex.org/C141069875","wikidata":"https://www.wikidata.org/wiki/Q7602602","display_name":"Starting vortex","level":4,"score":0.43868374824523926},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.37443655729293823},{"id":"https://openalex.org/C70477161","wikidata":"https://www.wikidata.org/wiki/Q190688","display_name":"Shock wave","level":2,"score":0.3384908437728882},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1260/1475-472x.7.3.199","doi":"https://doi.org/10.1260/1475-472x.7.3.199","is_oa":false,"landing_page_url":"https://doi.org/10.1260/1475-472x.7.3.199","pdf_url":null,"source":{"id":"https://openalex.org/S54474125","display_name":"International Journal of Aeroacoustics","issn_l":"1475-472X","issn":["1475-472X","2048-4003"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-2"],"host_organization":"https://openalex.org/P4310320017","host_organization_name":"SAGE Publishing","host_organization_lineage":["https://openalex.org/P4310320017"],"host_organization_lineage_names":["SAGE Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Aeroacoustics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":32,"referenced_works":["https://openalex.org/W1963490721","https://openalex.org/W1974641970","https://openalex.org/W1978517160","https://openalex.org/W1982887591","https://openalex.org/W1987239938","https://openalex.org/W1994690264","https://openalex.org/W1996610051","https://openalex.org/W1998063605","https://openalex.org/W2016141932","https://openalex.org/W2018980421","https://openalex.org/W2025212323","https://openalex.org/W2031181595","https://openalex.org/W2032458755","https://openalex.org/W2058199916","https://openalex.org/W2060122754","https://openalex.org/W2062376061","https://openalex.org/W2064045114","https://openalex.org/W2065621386","https://openalex.org/W2068445682","https://openalex.org/W2078855817","https://openalex.org/W2101959759","https://openalex.org/W2106393198","https://openalex.org/W2111597484","https://openalex.org/W2112177632","https://openalex.org/W2138817666","https://openalex.org/W2156942067","https://openalex.org/W2169565444","https://openalex.org/W2312853882","https://openalex.org/W2314814654","https://openalex.org/W3082654837","https://openalex.org/W4236731002","https://openalex.org/W4255085637"],"related_works":["https://openalex.org/W2314814654","https://openalex.org/W1983351822","https://openalex.org/W2124812341","https://openalex.org/W2138817666","https://openalex.org/W2050391651","https://openalex.org/W1982887591","https://openalex.org/W4403869472","https://openalex.org/W2028247058","https://openalex.org/W2029432881","https://openalex.org/W1790267013"],"abstract_inverted_index":{"Sound":[0,162],"generated":[1,163,217],"during":[2,18,164,218],"formation":[3,167,219],"of":[4,13,28,34,43,63,71,73,86,99,113,116,123,147,168,174,182,220],"a":[5,14,92,208],"compressible":[6],"vortex":[7,124,133,190,203],"ring":[8,40,125,204],"at":[9,91,102,178],"the":[10,44,64,69,74,96,100,111,114,121,132,145,148,165,172,175,179,183,189,201,228],"open":[11,180],"end":[12,181],"shock":[15,25,149,177,184,195],"tube":[16,101],"and":[17,48,52,110,224],"its":[19],"propagation":[20],"is":[21,78,126,129,137,186,205,231],"studied":[22],"experimentally":[23],"for":[24],"Mach":[26],"numbers":[27],"1.28":[29],"to":[30,141],"1.61.":[31],"The":[32,84],"occurrence":[33,72],"different":[35,103],"events":[36,76],"such":[37],"as":[38,56],"primary":[39,45,202],"formation,":[41,51],"growth":[42],"ring,":[46],"secondary":[47],"tertiary":[49],"vortices":[50,223],"pinching-off":[53],"are":[54,89],"identified":[55],"predominant":[57],"noise":[58],"producing":[59],"events.":[60],"Wavelet":[61],"analysis":[62],"measured":[65,90],"microphone":[66],"signal":[67],"identifies":[68],"time":[70],"above":[75],"which":[77],"verified":[79],"using":[80],"flow":[81],"visualization":[82],"pictures.":[83],"distributions":[85],"acoustic":[87],"fluctuations":[88],"fixed":[93],"distance":[94],"from":[95,144],"exit":[97],"center":[98],"angular":[104],"locations":[105],"in":[106],"horizontal":[107],"diametrical":[108],"plane":[109],"directivity":[112],"amplitude":[115],"sound":[117,136,216],"pressures":[118],"associated":[119],"with":[120,152,158,197,227],"evolution":[122,135,192],"found.":[127],"It":[128],"observed":[130],"that":[131],"ring's":[134,191],"dominant":[138,187],"between":[139],"25\u00b0":[140],"50\u00b0":[142],"angle":[143],"axis":[146],"tube.":[150],"Experiments":[151],"short":[153],"driver":[154,199],"section":[155],"produce":[156],"rings":[157],"small":[159],"trailing":[160,211,229],"jet.":[161,212],"initial":[166],"these":[169,214],"rings,":[170],"after":[171],"diffraction":[173],"incident":[176],"tube,":[185],"than":[188],"sound.":[193],"In":[194,213],"tubes":[196],"larger":[198],"section,":[200],"followed":[206],"by":[207],"relatively":[209],"longer":[210],"cases,":[215],"subsequent":[221],"shear-layer":[222],"their":[225],"interaction":[226],"jet":[230],"also":[232],"significant.":[233]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}
