{"id":"https://openalex.org/W7171978558","doi":"https://doi.org/10.47978/tus.2026.76.03.006","title":"A wind tunnel study of wingtip devices for small unmanned airplanes","display_name":"A wind tunnel study of wingtip devices for small unmanned airplanes","publication_year":2026,"publication_date":"2026-07-31","ids":{"openalex":"https://openalex.org/W7171978558","doi":"https://doi.org/10.47978/tus.2026.76.03.006"},"language":"en","primary_location":{"id":"doi:10.47978/tus.2026.76.03.006","doi":"https://doi.org/10.47978/tus.2026.76.03.006","is_oa":false,"landing_page_url":"https://doi.org/10.47978/tus.2026.76.03.006","pdf_url":null,"source":{"id":"https://openalex.org/S4210204230","display_name":"Proceedings of the Technical University of Sofia","issn_l":"1311-0829","issn":["1311-0829"],"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":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Technical University of Sofia","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/A5144172336","display_name":"Wajdi Jaffela","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wajdi Jaffela","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5144103652","display_name":"Shayma Kacem","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Shayma Kacem","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008334959","display_name":"Vladimir Serbezov","orcid":"https://orcid.org/0000-0002-6519-5254","observed_orcids":["https://orcid.org/0000-0002-6519-5254"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Vladimir Serbezov","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5102174635","display_name":"Michael Todorov","orcid":"https://orcid.org/0000-0002-3867-7557","observed_orcids":["https://orcid.org/0000-0002-3867-7557"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Michael Todorov","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"76","issue":"3","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12125","display_name":"Aerospace and Aviation Technology","score":0.3765000104904175,"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/T12125","display_name":"Aerospace and Aviation Technology","score":0.3765000104904175,"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/T13951","display_name":"Fluid dynamics and aerodynamics studies","score":0.20010000467300415,"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/T12081","display_name":"Aerodynamics and Fluid Dynamics Research","score":0.1111999973654747,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/wingtip-devices","display_name":"wingtip devices","score":0.9929999709129333},{"id":"https://openalex.org/keywords/wingtip-vortices","display_name":"wingtip vortices","score":0.8100000023841858},{"id":"https://openalex.org/keywords/small-unmanned-aerial-vehicles","display_name":"small unmanned aerial vehicles","score":0.8539999723434448},{"id":"https://openalex.org/keywords/unmanned-aerial-vehicles","display_name":"unmanned aerial vehicles","score":0.7889999747276306},{"id":"https://openalex.org/keywords/aerodynamic-drag-reduction","display_name":"aerodynamic drag reduction","score":0.6769999861717224},{"id":"https://openalex.org/keywords/wind-tunnel-testing","display_name":"wind tunnel testing","score":0.6840000152587891}],"concepts":[{"id":"https://openalex.org/C199104240","wikidata":"https://www.wikidata.org/wiki/Q118291","display_name":"Marine engineering","level":1,"score":0.47690001130104065},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.41429999470710754},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.33739998936653137},{"id":"https://openalex.org/C178802073","wikidata":"https://www.wikidata.org/wiki/Q8421","display_name":"Aeronautics","level":1,"score":0.3257000148296356},{"id":"https://openalex.org/C100086909","wikidata":"https://www.wikidata.org/wiki/Q193010","display_name":"Wind tunnel","level":2,"score":0.31220000982284546},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.28679999709129333},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.26330000162124634},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.2623000144958496},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.24230000376701355},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.23929999768733978}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.47978/tus.2026.76.03.006","doi":"https://doi.org/10.47978/tus.2026.76.03.006","is_oa":false,"landing_page_url":"https://doi.org/10.47978/tus.2026.76.03.006","pdf_url":null,"source":{"id":"https://openalex.org/S4210204230","display_name":"Proceedings of the Technical University of Sofia","issn_l":"1311-0829","issn":["1311-0829"],"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":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Technical University of Sofia","raw_type":"journal-article"},{"id":"doi:10.47978/tus.2025.76.03.006","doi":"https://doi.org/10.47978/tus.2025.76.03.006","is_oa":false,"landing_page_url":"https://doi.org/10.47978/tus.2025.76.03.006","pdf_url":null,"source":{"id":"https://openalex.org/S4210204230","display_name":"Proceedings of the Technical University of Sofia","issn_l":"1311-0829","issn":["1311-0829"],"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":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Technical University of Sofia","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":2,"referenced_works":["https://openalex.org/W4406214168","https://openalex.org/W4412384891"],"related_works":["https://openalex.org/W2597062091","https://openalex.org/W2751254949","https://openalex.org/W2328361382","https://openalex.org/W2067480299","https://openalex.org/W3194427069","https://openalex.org/W1653656074","https://openalex.org/W7011464186","https://openalex.org/W6960039874","https://openalex.org/W2781580011","https://openalex.org/W2583288702"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-11-08T12:12:28.789561","created_date":"2026-08-01T00:00:00"}