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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">avroen</journal-id><journal-title-group><journal-title xml:lang="ru">Омский научный вестник. Серия "Авиационно-ракетное и энергетическое машиностроение"</journal-title><trans-title-group xml:lang="en"><trans-title>Omsk Scientific Bulletin. Series Aviation-Rocket and Power Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2588-0373</issn><issn pub-type="epub">2587-764X</issn><publisher><publisher-name>Омский государственный технический университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25206/2588-0373-2025-9-2-86-93</article-id><article-id custom-type="edn" pub-id-type="custom">JQDZTB</article-id><article-id custom-type="elpub" pub-id-type="custom">avroen-85</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>АВИАЦИОННАЯ И РАКЕТНО-КОСМИЧЕСКАЯ ТЕХНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AVIATION AND ROCKET-SPACE ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Исследование характеристик «безлопаточных» вентиляторов применительно к двигателям беспилотных летательных аппаратов</article-title><trans-title-group xml:lang="en"><trans-title>Study of the small multicopters bladeless propulsors characteristics</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3710-5116</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Брызгунов</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bryzgunov</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Брызгунов Павел Александрович - ассистент кафедры инновационных технологий наукоемких отраслей Института энергоэффективности и водородных технологий НИУ «МЭИ».</p><p>111250, Москва, ул. Красноказарменная, д. 14, стр. 1</p><p>AuthorID (РИНЦ) 1069772</p><p>AuthorID (SCOPUS) 57844836600</p></bio><bio xml:lang="en"><p>Pavel A. Bryzgunov - Assistant of the Innovative Technologies for High-Tech Industries Department, Institute of Energy Efficiency and Hydrogen Technologies, National Research University “Moscow Power Engineering Institute” (MPEI).</p><p>Moscow, Krasnokazarmennaya st., 14, bld. 1, 111250</p><p>AuthorID (RSCI) 1069772</p><p>AuthorID (SCOPUS) 57844836600</p></bio><email xlink:type="simple">pavel.bryzgunov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Григоров</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigorov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Григоров Владислав Алексеевич - инженер кафедры инновационных технологий наукоемких отраслей Института энергоэффективности и водородных технологий НИУ «МЭИ».</p><p>111250, Москва, ул. Красноказарменная, д. 14, стр. 1</p></bio><bio xml:lang="en"><p>Vladislav A. Grigorov - Engineer of the Innovative Technologies for High-Tech Industries Department, Institute of Energy Efficiency and Hydrogen Technologies, MPEI.</p><p>Moscow, Krasnokazarmennaya st., 14, bld. 1, 111250</p></bio><email xlink:type="simple">grigorovva@mpei.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гришин</surname><given-names>Л. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Grishin</surname><given-names>L. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гришин Леонид Евгеньевич - студент направления «Теплоэнергетика и теплотехника» кафедры инновационных технологий наукоемких отраслей Института энергоэффективности и водородных технологий НИУ «МЭИ».</p><p>111250, Москва, ул. Красноказарменная, д. 14, стр. 1</p></bio><bio xml:lang="en"><p>Leonid E. Grishin - Student in Thermal Engineering of the Innovative Technologies for High-Tech Industries Department, Institute of Energy Efficiency and Hydrogen Technologies, MPEI.</p><p>Moscow, Krasnokazarmennaya st., 14, bld. 1, 111250</p></bio><email xlink:type="simple">grishinly@mpei.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванова</surname><given-names>Е. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванова Евгения Александровна - студент направления «Энергетическое машиностроение» кафедры паровых и газовых турбин Института энергомашиностроения и механики НИУ «МЭИ».</p><p>111250, Москва, ул. Красноказарменная, д. 14, стр. 1</p></bio><bio xml:lang="en"><p>Evgenia A. Ivanova - Student in Power Engineering of the Steam and Gas Turbines Department, Institute of Power Engineering and Mechanics, MPEI.</p><p>Moscow, Krasnokazarmennaya st., 14, bld. 1, 111250</p></bio><email xlink:type="simple">ivanovayeva@mpei.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Национальный исследовательский университет «МЭИ»<country>Россия</country></aff><aff xml:lang="en">National Research University “Moscow Power Engineering Institute”<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2025</year></pub-date><volume>9</volume><issue>2</issue><fpage>86</fpage><lpage>93</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Брызгунов П.А., Григоров В.А., Гришин Л.Е., Иванова Е.A., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Брызгунов П.А., Григоров В.А., Гришин Л.Е., Иванова Е.A.</copyright-holder><copyright-holder xml:lang="en">Bryzgunov P.A., Grigorov V.A., Grishin L.E., Ivanova E.A.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://ariem.omgtu.ru/jour/article/view/85">https://ariem.omgtu.ru/jour/article/view/85</self-uri><abstract><p>В работе исследованы ключевые технические характеристики «безлопаточных» движителей перспективных силовых турбовентиляторных установок для мультикоптерных беспилотных летательных аппаратов. Выявлены аспектные соотношения, обеспечивающие наибольшую тягу и тяговый КПД, проведены исследования влияния радиуса вентилятора и толщины кольцевого зазора в нем на показатели его эффективности как движителя при фиксированном расходе и длине. Установлено, что наибольшей эффективностью обладает конфигурация с радиусом 175 мм при длине 150 мм и расходе воздуха 0,3 кг/с, что обеспечивает число Маха на выходе, равное 0,42. Данная конфигурация обеспечивает тягу 44 Н, сохранение импульса скоростной струи на уровне 92 % при полном давлении на входе 17 800 Па.</p></abstract><trans-abstract xml:lang="en"><p>The study examines the fundamental technical characteristics of bladeless propulsors intended for advanced turbofan propulsion systems in multicopter unmanned aerial vehicles. The research identifies optimal aspect ratios that maximize thrust and thrust efficiency while analyzing the impact of fan radius and annular gap thickness on propulsion efficiency under constant flow rate and length conditions. The findings indicate that the most efficient configuration features a fan radius of 175 mm, a length of 150 mm, and an air mass flow rate of 0,3 kg/s, yielding an exit Mach number of 0,42. This configuration generates a thrust of 44 N while maintaining high-speed jet momentum conservation at 92 %, under a total inlet pressure of 17,800 Pa.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>эффект Коанда</kwd><kwd>вентилятор Дайсона</kwd><kwd>беспилотные летательные аппараты (БПЛА)</kwd><kwd>тяга</kwd><kwd>малая авиация</kwd><kwd>газотурбинный двигатель</kwd><kwd>движитель</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Coanda effect</kwd><kwd>Dyson fan</kwd><kwd>unmanned aerial vehicles (UAVs)</kwd><kwd>thrust</kwd><kwd>small aircraft</kwd><kwd>engine</kwd><kwd>bladeless propulsion</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена в рамках проекта «Разработка технических решений, обеспечивающих повышение эффективности авиационных газотурбинных двигателей» при поддержке гранта Национального исследовательского университета «МЭИ» на реализацию программы научных исследований «Приоритет 2030: Технологии будущего» в 2024–2026 гг.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The investigation has been carried out within the framework of project “Development of technical solutions to improve the efficiency of aircraft gas turbine engines” with the support of a subvention from the National Research University “Moscow Power Engineering Institute” for implementation of the internal research program “Priority 2030: Future Technologies” in 2024–2026.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Мамедов Б. 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