{"id":"https://openalex.org/W1662376762","doi":null,"title":"A comparison of measured and predicted test flow in an expansion tube with air and oxygen test gases","display_name":"A comparison of measured and predicted test flow in an expansion tube with air and oxygen test gases","publication_year":1975,"publication_date":"1975-12-01","ids":{"openalex":"https://openalex.org/W1662376762","mag":"1662376762"},"language":"en","primary_location":{"id":"pmh:oai:casi.ntrs.nasa.gov:19760008322","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/2060/19760008322","pdf_url":"http://hdl.handle.net/2060/19760008322","source":{"id":"https://openalex.org/S4377196257","display_name":"NASA STI Repository (National Aeronautics and Space Administration)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4210124779","host_organization_name":"National Aeronautics and Space Administration","host_organization_lineage":["https://openalex.org/I4210124779"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"CASI","raw_type":"NASA-TN-D-8068"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://hdl.handle.net/2060/19760008322","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5045239170","display_name":"K. V. Aaggard","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1319063186","display_name":"Langley Research Center","ror":"https://ror.org/0399mhs52","country_code":"US","type":"facility","lineage":["https://openalex.org/I1319063186","https://openalex.org/I4210124779"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"K. V. Aaggard","raw_affiliation_strings":["NASA Langley Research Center, Hampton, VA (United States)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NASA Langley Research Center, Hampton, VA (United States)","institution_ids":["https://openalex.org/I1319063186"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5046509296","display_name":"William K. Goad","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"W. K. Goad","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.9371,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.6737388,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"76","issue":null,"first_page":"15410","last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10173","display_name":"Computational Fluid Dynamics and Aerodynamics","score":0.4438000023365021,"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"}},"topics":[{"id":"https://openalex.org/T10173","display_name":"Computational Fluid Dynamics and Aerodynamics","score":0.4438000023365021,"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/T11012","display_name":"Gas Dynamics and Kinetic Theory","score":0.3495999872684479,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13951","display_name":"Fluid dynamics and aerodynamics studies","score":0.1469999998807907,"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/expansion-tube","display_name":"expansion tube","score":0.9279999732971191},{"id":"https://openalex.org/keywords/test-flow","display_name":"test flow","score":0.5139999985694885},{"id":"https://openalex.org/keywords/air","display_name":"air","score":0.5339999794960022},{"id":"https://openalex.org/keywords/oxygen","display_name":"oxygen","score":0.9459999799728394},{"id":"https://openalex.org/keywords/vibrational-relaxation","display_name":"vibrational relaxation","score":0.9980000257492065},{"id":"https://openalex.org/keywords/pitot-pressure","display_name":"pitot pressure","score":0.9459999799728394},{"id":"https://openalex.org/keywords/wall-pressure","display_name":"wall pressure","score":0.8050000071525574},{"id":"https://openalex.org/keywords/temperature-measurement","display_name":"temperature measurement","score":0.6000000238418579},{"id":"https://openalex.org/keywords/density-measurement","display_name":"density measurement","score":0.7570000290870667},{"id":"https://openalex.org/keywords/interface-velocity","display_name":"interface velocity","score":0.640999972820282},{"id":"https://openalex.org/keywords/wall-boundary-layer","display_name":"wall boundary layer","score":0.7160000205039978},{"id":"https://openalex.org/keywords/shock-waves","display_name":"shock waves","score":0.4860000014305115},{"id":"https://openalex.org/keywords/hypersonic-wind-tunnel","display_name":"hypersonic wind tunnel","score":0.5370000004768372}],"concepts":[{"id":"https://openalex.org/C162037100","wikidata":"https://www.wikidata.org/wiki/Q56218","display_name":"Pitot tube","level":3,"score":0.9798470139503479},{"id":"https://openalex.org/C111603439","wikidata":"https://www.wikidata.org/wiki/Q752193","display_name":"Boundary layer","level":2,"score":0.6747557520866394},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.6573479175567627},{"id":"https://openalex.org/C122881758","wikidata":"https://www.wikidata.org/wiki/Q2352496","display_name":"Shock tube","level":3,"score":0.6112394332885742},{"id":"https://openalex.org/C2778920262","wikidata":"https://www.wikidata.org/wiki/Q7578735","display_name":"Splitter plate","level":2,"score":0.4758327007293701},{"id":"https://openalex.org/C119474132","wikidata":"https://www.wikidata.org/wiki/Q5420792","display_name":"Expansion tunnel","level":3,"score":0.4582980275154114},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.42038998007774353},{"id":"https://openalex.org/C158522163","wikidata":"https://www.wikidata.org/wiki/Q2406217","display_name":"Static pressure","level":2,"score":0.4178640842437744},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.4164923131465912},{"id":"https://openalex.org/C167191414","wikidata":"https://www.wikidata.org/wiki/Q908724","display_name":"Real gas","level":2,"score":0.4146949052810669},{"id":"https://openalex.org/C38349280","wikidata":"https://www.wikidata.org/wiki/Q1434290","display_name":"Flow (mathematics)","level":2,"score":0.412860244512558},{"id":"https://openalex.org/C164292776","wikidata":"https://www.wikidata.org/wiki/Q5271779","display_name":"Diaphragm (acoustics)","level":3,"score":0.41230830550193787},{"id":"https://openalex.org/C2777551473","wikidata":"https://www.wikidata.org/wiki/Q2093072","display_name":"Tube (container)","level":2,"score":0.41208162903785706},{"id":"https://openalex.org/C70477161","wikidata":"https://www.wikidata.org/wiki/Q190688","display_name":"Shock wave","level":2,"score":0.40143710374832153},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.35727861523628235},{"id":"https://openalex.org/C165231844","wikidata":"https://www.wikidata.org/wiki/Q160669","display_name":"Mach number","level":2,"score":0.3153392970561981},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.27065205574035645},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.19597065448760986},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.16157233715057373},{"id":"https://openalex.org/C198394728","wikidata":"https://www.wikidata.org/wiki/Q3695508","display_name":"Vibration","level":2,"score":0.09717783331871033}],"mesh":[],"locations_count":3,"locations":[{"id":"pmh:oai:casi.ntrs.nasa.gov:19760008322","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/2060/19760008322","pdf_url":"http://hdl.handle.net/2060/19760008322","source":{"id":"https://openalex.org/S4377196257","display_name":"NASA STI Repository (National Aeronautics and Space Administration)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4210124779","host_organization_name":"National Aeronautics and Space Administration","host_organization_lineage":["https://openalex.org/I4210124779"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"CASI","raw_type":"NASA-TN-D-8068"},{"id":"pmh:oai:quod.lib.umich.edu:MIU01-011443380","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/2027/uiug.30112106916205","pdf_url":null,"source":{"id":"https://openalex.org/S7407064297","display_name":"University of Michigan Library Repository","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"public-domain","license_id":"https://openalex.org/licenses/public-domain","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"text"},{"id":"mag:1662376762","doi":null,"is_oa":false,"landing_page_url":"https://ntrs.nasa.gov/api/citations/19760008322/downloads/19760008322.pdf","pdf_url":null,"source":{"id":"https://openalex.org/S4306520500","display_name":"NASA STI/Recon Technical Report N","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"NASA STI/Recon Technical Report N","raw_type":null}],"best_oa_location":{"id":"pmh:oai:casi.ntrs.nasa.gov:19760008322","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/2060/19760008322","pdf_url":"http://hdl.handle.net/2060/19760008322","source":{"id":"https://openalex.org/S4377196257","display_name":"NASA STI Repository (National Aeronautics and Space Administration)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4210124779","host_organization_name":"National Aeronautics and Space Administration","host_organization_lineage":["https://openalex.org/I4210124779"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"CASI","raw_type":"NASA-TN-D-8068"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1662376762.pdf","grobid_xml":"https://content.openalex.org/works/W1662376762.grobid-xml"},"referenced_works_count":13,"referenced_works":["https://openalex.org/W8691572","https://openalex.org/W52896216","https://openalex.org/W202229082","https://openalex.org/W657867497","https://openalex.org/W780189488","https://openalex.org/W818657564","https://openalex.org/W830564427","https://openalex.org/W848659238","https://openalex.org/W1653332667","https://openalex.org/W2046002177","https://openalex.org/W2071937493","https://openalex.org/W2136672194","https://openalex.org/W3043462980"],"related_works":["https://openalex.org/W830564427","https://openalex.org/W582954242","https://openalex.org/W1545828982","https://openalex.org/W4410576750","https://openalex.org/W835471589","https://openalex.org/W2333025333","https://openalex.org/W7047250863","https://openalex.org/W4321600908","https://openalex.org/W2034602775","https://openalex.org/W2177363534"],"abstract_inverted_index":{"Simultaneous":[0],"time-resolved":[1],"measurements":[2],"of":[3,42,54,106],"temperature,":[4],"density,":[5],"pitot":[6,69,100],"pressure,":[7],"and":[8,14,32,71,78,98],"wall":[9,88],"pressure":[10,70],"in":[11,20,60,63,95],"both":[12],"air":[13],"O2":[15],"test":[16],"gases":[17],"were":[18],"obtained":[19],"the":[21,37,48,52,55,64,67,72,87,96],"Langley":[22],"pilot":[23],"model":[24],"expansion":[25],"tube.":[26],"These":[27],"tests":[28],"show":[29,91],"nonequilibrium":[30],"chemical":[31],"vibrational":[33],"relaxation":[34],"significantly":[35],"affect":[36],"test-flow":[38],"condition.":[39],"The":[40],"use":[41],"an":[43,61],"electromagnetic":[44],"device":[45],"to":[46,85],"preopen":[47],"secondary":[49],"diaphragm":[50],"before":[51],"arrival":[53],"primary":[56],"shock":[57],"wave":[58],"resulted":[59],"improvement":[62],"agreement":[65],"between":[66],"measured":[68,76,97],"value":[73],"inferred":[74,99],"from":[75],"density":[77],"interface":[79],"velocity.":[80],"Boundary-layer":[81],"splitter":[82],"plates":[83],"used":[84],"reduce":[86],"boundary":[89],"layer":[90],"that":[92],"this":[93],"disagreement":[94],"pressures":[101],"is":[102],"not":[103],"a":[104],"result":[105],"boundary-layer":[107],"effects.":[108]},"counts_by_year":[{"year":2019,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}