{"id":"https://openalex.org/W4372279490","doi":"https://doi.org/10.15587/1729-4061.2023.278001","title":"Pattern identification of the non-stationary laminar flow of a viscous fluid in the round pipe inlet section","display_name":"Pattern identification of the non-stationary laminar flow of a viscous fluid in the round pipe inlet section","publication_year":2023,"publication_date":"2023-04-30","ids":{"openalex":"https://openalex.org/W4372279490","doi":"https://doi.org/10.15587/1729-4061.2023.278001"},"language":"en","primary_location":{"id":"doi:10.15587/1729-4061.2023.278001","doi":"https://doi.org/10.15587/1729-4061.2023.278001","is_oa":true,"landing_page_url":"https://doi.org/10.15587/1729-4061.2023.278001","pdf_url":"http://journals.uran.ua/eejet/article/download/278001/272828","source":{"id":"https://openalex.org/S2764476468","display_name":"Eastern-European Journal of Enterprise Technologies","issn_l":"1729-3774","issn":["1729-3774","1729-4061"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["erih-plus","poland-40"],"host_organization":"https://openalex.org/P4310320860","host_organization_name":"Kharkiv State Academy of Physical Culture","host_organization_lineage":["https://openalex.org/P4310320860"],"host_organization_lineage_names":["Kharkiv State Academy of Physical Culture"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Eastern-European Journal of Enterprise Technologies","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"http://journals.uran.ua/eejet/article/download/278001/272828","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5022703206","display_name":"Arestak Sarukhanyan","orcid":"https://orcid.org/0000-0003-4928-9960","observed_orcids":["https://orcid.org/0000-0003-4928-9960"]},"institutions":[{"id":"https://openalex.org/I3129498420","display_name":"National University of Architecture and Construction of Armenia","ror":"https://ror.org/002s77n28","country_code":"AM","type":"education","lineage":["https://openalex.org/I3129498420"]}],"countries":["AM"],"is_corresponding":true,"raw_author_name":"Arestak Sarukhanyan","raw_affiliation_strings":["National University of Architecture and Construction of Armenia, Armenia"],"raw_orcid":"https://orcid.org/0000-0003-4928-9960","affiliations":[{"raw_affiliation_string":"National University of Architecture and Construction of Armenia, Armenia","institution_ids":["https://openalex.org/I3129498420"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085359529","display_name":"Yeghiazar Vahram Vardanyan","orcid":"https://orcid.org/0000-0001-7208-8038","observed_orcids":["https://orcid.org/0000-0001-7208-8038"]},"institutions":[{"id":"https://openalex.org/I3129498420","display_name":"National University of Architecture and Construction of Armenia","ror":"https://ror.org/002s77n28","country_code":"AM","type":"education","lineage":["https://openalex.org/I3129498420"]}],"countries":["AM"],"is_corresponding":true,"raw_author_name":"Yeghiazar Vardanyan","raw_affiliation_strings":["National University of Architecture and Construction of Armenia, Armenia"],"raw_orcid":"https://orcid.org/0000-0001-7208-8038","affiliations":[{"raw_affiliation_string":"National University of Architecture and Construction of Armenia, Armenia","institution_ids":["https://openalex.org/I3129498420"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5069680045","display_name":"Pargev Baljyan","orcid":"https://orcid.org/0000-0002-8936-2547","observed_orcids":["https://orcid.org/0000-0002-8936-2547"]},"institutions":[{"id":"https://openalex.org/I191043459","display_name":"National Polytechnic University of Armenia","ror":"https://ror.org/007b9cn27","country_code":"AM","type":"education","lineage":["https://openalex.org/I191043459"]}],"countries":["AM"],"is_corresponding":true,"raw_author_name":"Pargev Baljyan","raw_affiliation_strings":["National Polytechnic University of Armenia, Armenia"],"raw_orcid":"https://orcid.org/0000-0002-8936-2547","affiliations":[{"raw_affiliation_string":"National Polytechnic University of Armenia, Armenia","institution_ids":["https://openalex.org/I191043459"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5055068844","display_name":"Garnik Vermishyan","orcid":"https://orcid.org/0000-0001-8524-5899","observed_orcids":["https://orcid.org/0000-0001-8524-5899"]},"institutions":[{"id":"https://openalex.org/I3129498420","display_name":"National University of Architecture and Construction of Armenia","ror":"https://ror.org/002s77n28","country_code":"AM","type":"education","lineage":["https://openalex.org/I3129498420"]}],"countries":["AM"],"is_corresponding":true,"raw_author_name":"Garnik Vermishyan","raw_affiliation_strings":["National University of Architecture and Construction of Armenia, Armenia"],"raw_orcid":"https://orcid.org/0000-0001-8524-5899","affiliations":[{"raw_affiliation_string":"National University of Architecture and Construction of Armenia, Armenia","institution_ids":["https://openalex.org/I3129498420"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5022703206","https://openalex.org/A5055068844","https://openalex.org/A5069680045","https://openalex.org/A5085359529"],"corresponding_institution_ids":["https://openalex.org/I191043459","https://openalex.org/I3129498420"],"apc_list":{"value":225,"currency":"EUR","value_usd":242},"apc_paid":{"value":225,"currency":"EUR","value_usd":242},"fwci":0.6617,"has_fulltext":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.52808747,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"2","issue":"7 (122)","first_page":"33","last_page":"42"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13951","display_name":"Fluid dynamics and aerodynamics studies","score":0.9624000191688538,"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/T13951","display_name":"Fluid dynamics and aerodynamics studies","score":0.9624000191688538,"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/T10360","display_name":"Fluid Dynamics and Turbulent Flows","score":0.027499999850988388,"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/T11379","display_name":"Rheology and Fluid Dynamics Studies","score":0.003000000026077032,"subfield":{"id":"https://openalex.org/subfields/1507","display_name":"Fluid Flow and Transfer Processes"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/viscous-fluid","display_name":"viscous fluid","score":0.6589999794960022},{"id":"https://openalex.org/keywords/parabolic-velocity-profile","display_name":"parabolic velocity profile","score":0.7039999961853027},{"id":"https://openalex.org/keywords/boundary-layer-equations","display_name":"boundary layer equations","score":0.652999997138977},{"id":"https://openalex.org/keywords/axisymmetric-flow","display_name":"axisymmetric flow","score":0.7450000047683716},{"id":"https://openalex.org/keywords/boundary-value-problems","display_name":"boundary value problems","score":0.6380000114440918},{"id":"https://openalex.org/keywords/analytical-solution","display_name":"analytical solution","score":0.5879999995231628},{"id":"https://openalex.org/keywords/pressure-distribution","display_name":"pressure distribution","score":0.7409999966621399},{"id":"https://openalex.org/keywords/entrance-length","display_name":"entrance length","score":0.5529999732971191}],"concepts":[{"id":"https://openalex.org/C76563973","wikidata":"https://www.wikidata.org/wiki/Q189452","display_name":"Laminar flow","level":2,"score":0.717237651348114},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.6562259197235107},{"id":"https://openalex.org/C201289731","wikidata":"https://www.wikidata.org/wiki/Q1172599","display_name":"Inlet","level":2,"score":0.5930256843566895},{"id":"https://openalex.org/C182748727","wikidata":"https://www.wikidata.org/wiki/Q178932","display_name":"Reynolds number","level":3,"score":0.5785216689109802},{"id":"https://openalex.org/C38349280","wikidata":"https://www.wikidata.org/wiki/Q1434290","display_name":"Flow (mathematics)","level":2,"score":0.5534666180610657},{"id":"https://openalex.org/C182310444","wikidata":"https://www.wikidata.org/wiki/Q1332643","display_name":"Boundary value problem","level":2,"score":0.4939296841621399},{"id":"https://openalex.org/C111603439","wikidata":"https://www.wikidata.org/wiki/Q752193","display_name":"Boundary layer","level":2,"score":0.48315709829330444},{"id":"https://openalex.org/C168907044","wikidata":"https://www.wikidata.org/wiki/Q7834431","display_name":"Transition point","level":2,"score":0.44965481758117676},{"id":"https://openalex.org/C191545125","wikidata":"https://www.wikidata.org/wiki/Q383758","display_name":"Plug flow","level":2,"score":0.4329318106174469},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.43104034662246704},{"id":"https://openalex.org/C2780129039","wikidata":"https://www.wikidata.org/wiki/Q1931107","display_name":"Section (typography)","level":2,"score":0.41333192586898804},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.389259934425354},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.32855933904647827},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.2563313841819763},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.23536711931228638},{"id":"https://openalex.org/C196558001","wikidata":"https://www.wikidata.org/wiki/Q190132","display_name":"Turbulence","level":2,"score":0.12468570470809937},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.0},{"id":"https://openalex.org/C112698675","wikidata":"https://www.wikidata.org/wiki/Q37038","display_name":"Advertising","level":1,"score":0.0},{"id":"https://openalex.org/C114793014","wikidata":"https://www.wikidata.org/wiki/Q52109","display_name":"Geomorphology","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.15587/1729-4061.2023.278001","doi":"https://doi.org/10.15587/1729-4061.2023.278001","is_oa":true,"landing_page_url":"https://doi.org/10.15587/1729-4061.2023.278001","pdf_url":"http://journals.uran.ua/eejet/article/download/278001/272828","source":{"id":"https://openalex.org/S2764476468","display_name":"Eastern-European Journal of Enterprise Technologies","issn_l":"1729-3774","issn":["1729-3774","1729-4061"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["erih-plus","poland-40"],"host_organization":"https://openalex.org/P4310320860","host_organization_name":"Kharkiv State Academy of Physical Culture","host_organization_lineage":["https://openalex.org/P4310320860"],"host_organization_lineage_names":["Kharkiv State Academy of Physical Culture"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Eastern-European Journal of Enterprise Technologies","raw_type":"journal-article"},{"id":"pmh:oai:ojs.journals.uran.ua:article/278001","doi":null,"is_oa":true,"landing_page_url":"http://journals.uran.ua/eejet/article/view/278001","pdf_url":"https://journals.uran.ua/eejet/article/download/278001/272828","source":{"id":"https://openalex.org/S4210228265","display_name":"The Scientific Issues of Ternopil Volodymyr Hnatiuk National Pedagogical University Series pedagogy","issn_l":"2311-6382","issn":["2311-6382","2415-3605"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj","erih-plus"],"host_organization":"https://openalex.org/P4310322067","host_organization_name":"Ternopil Volodymyr Hnatiuk National Pedagogical University","host_organization_lineage":["https://openalex.org/P4310322067"],"host_organization_lineage_names":["Ternopil Volodymyr Hnatiuk National Pedagogical University"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"1729-3774","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:zenodo.org:7915681","doi":null,"is_oa":true,"landing_page_url":"https://zenodo.org/record/7915681","pdf_url":"https://zenodo.org/record/7915681","source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Eastern-European Journal of Enterprise Technologies 2(7(122)) 33-42","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.15587/1729-4061.2023.278001","doi":"https://doi.org/10.15587/1729-4061.2023.278001","is_oa":true,"landing_page_url":"https://doi.org/10.15587/1729-4061.2023.278001","pdf_url":"http://journals.uran.ua/eejet/article/download/278001/272828","source":{"id":"https://openalex.org/S2764476468","display_name":"Eastern-European Journal of Enterprise Technologies","issn_l":"1729-3774","issn":["1729-3774","1729-4061"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":["erih-plus","poland-40"],"host_organization":"https://openalex.org/P4310320860","host_organization_name":"Kharkiv State Academy of Physical Culture","host_organization_lineage":["https://openalex.org/P4310320860"],"host_organization_lineage_names":["Kharkiv State Academy of Physical Culture"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Eastern-European Journal of Enterprise Technologies","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4372279490.pdf","grobid_xml":"https://content.openalex.org/works/W4372279490.grobid-xml"},"referenced_works_count":11,"referenced_works":["https://openalex.org/W1607071030","https://openalex.org/W2028303807","https://openalex.org/W2031137102","https://openalex.org/W2034578714","https://openalex.org/W2091976939","https://openalex.org/W2131039079","https://openalex.org/W2569084203","https://openalex.org/W2991641682","https://openalex.org/W3048184562","https://openalex.org/W3110353271","https://openalex.org/W4280586532"],"related_works":["https://openalex.org/W7134666777","https://openalex.org/W4380360428","https://openalex.org/W4410037055","https://openalex.org/W4396678389","https://openalex.org/W4415649755","https://openalex.org/W2142146720","https://openalex.org/W2124716035","https://openalex.org/W1969563908","https://openalex.org/W2098204742","https://openalex.org/W2055420822"],"abstract_inverted_index":{"The":[0,56,230,256],"study":[1],"of":[2,5,14,20,29,66,70,79,100,105,150,172,181,202,208,212,227,232,243,249,253,267],"the":[3,8,12,18,21,25,32,39,49,54,64,73,80,88,92,98,102,106,111,118,124,138,166,169,179,182,196,200,205,209,213,228,233,241,250,254,260],"patterns":[4,149,201],"change":[6,51,119,203],"in":[7,31,53,61,72,120,123,137,152,175],"hydrodynamic":[9],"parameters":[10],"under":[11,48],"conditions":[13,52,58,90,104,261],"non-stationary":[15],"flow":[16,157,222],"at":[17,158,162,224],"entry":[19,33,74],"cylindrical":[22],"pipe":[23],"and":[24,91,110,133,154,161],"initial":[26,89],"arbitrary":[27,68],"distribution":[28,69,136],"velocities":[30,71,121,153],"section":[34,160],"was":[35,46],"conducted":[36],"based":[37,239],"on":[38,87,240],"boundary":[40,44,57,103],"layer":[41],"equations.":[42],"A":[43,76],"problem":[45,107,113],"formed":[47],"axisymmetric":[50],"flow.":[55,255],"were":[59,186,216],"chosen":[60],"accordance":[62,96],"with":[63,97],"pattern":[65],"an":[67],"section.":[75,229],"general":[77],"solution":[78],"approximating":[81],"Navier-Stokes":[82],"equations":[83],"is":[84,114],"presented":[85],"depending":[86],"Reynolds":[93],"number.":[94],"In":[95],"type":[99],"flow,":[101],"are":[108],"established,":[109],"boundary-value":[112],"formulated.":[115],"Regularities":[116],"for":[117,130,191,262],"lengthwise":[122],"entrance":[125,183,214],"region":[126,215],"have":[127,143],"been":[128,144],"obtained":[129,197],"a":[131,245],"constant":[132],"parabolic":[134],"velocity":[135,173,223,252],"inlet":[139],"cross-sections.":[140],"Analytical":[141],"solutions":[142,258],"obtained,":[145],"allowing":[146],"to":[147,219],"obtain":[148,220],"changes":[151,174],"pressures":[155],"toward":[156],"any":[159,163,225],"time.":[164],"For":[165],"mentioned":[167],"cases,":[168],"composite":[170,198],"graphs":[171],"different":[176,192],"sections":[177],"along":[178],"length":[180,207,231],"transition":[184,210,234],"area":[185,211],"constructed":[187],"by":[188],"computer":[189],"analysis,":[190],"time":[193],"conditions.":[194],"With":[195],"graphs,":[199],"over":[204],"entire":[206],"constructed,":[217],"enabling":[218],"fluid":[221],"point":[226],"zone":[235],"can":[236],"be":[237],"estimated":[238],"condition":[242],"reaching":[244],"certain":[246],"percentage":[247],"(99%)":[248],"maximum":[251],"proposed":[257],"create":[259],"correctly":[263],"constructing":[264],"separate":[265],"units":[266],"hydromechanical":[268],"equipment":[269]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2023-05-07T00:00:00"}