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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">mireabulletin</journal-id><journal-title-group><journal-title xml:lang="ru">Russian Technological Journal</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Technological Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-3210</issn><issn pub-type="epub">2500-316X</issn><publisher><publisher-name>RTU MIREA</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2500316X-2025-13-1-136-143</article-id><article-id custom-type="edn" pub-id-type="custom">XIFHYB</article-id><article-id custom-type="elpub" pub-id-type="custom">mireabulletin-1080</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>МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICAL MODELING</subject></subj-group></article-categories><title-group><article-title>Моделирование работы трубчатых теплообменников методом сглаженных частиц</article-title><trans-title-group xml:lang="en"><trans-title>A smoothed particle hydrodynamics approach for numerical simulation of tube heat exchangers</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3413-8855</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коренченко</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Korenchenko</surname><given-names>Anna E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коренченко Анна Евгеньевна, д.ф.-м.н., профессор, кафедра высшей математики, Институт кибербезопасности и цифровых технологий,</p><p>119454, Москва, пр-т Вернадского, д. 78. </p><p>Scopus AuthorID: 10043443100.</p></bio><bio xml:lang="en"><p>Anna E. Korenchenko, Dr. Sci. (Phys.-Math.), Professor, Higher Mathematics Department, Institute of Cybersecurity and Digital Technologies,</p><p>78, Vernadskogo pr., Moscow, 119454.</p><p>Scopus AuthorID: 10043443100. </p></bio><email xlink:type="simple">korenchenko@mirea.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-0812-6099</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сухов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sukhov</surname><given-names>Anton V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сухов Антон Владимирович, студент, Институт кибербезопасности и цифровых технологий, </p><p>119454, Москва, пр-т Вернадского, д. 78.</p></bio><bio xml:lang="en"><p>Anton V. Sukhov, Student, Institute of Cybersecurity and Digital Technologies, </p><p>78, Vernadskogo pr., Moscow, 119454.</p></bio><email xlink:type="simple">tosha.sukhov@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО "МИРЭА – Российский технологический университет"</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>06</day><month>02</month><year>2025</year></pub-date><volume>13</volume><issue>1</issue><fpage>136</fpage><lpage>143</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Коренченко А.Е., Сухов А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Коренченко А.Е., Сухов А.В.</copyright-holder><copyright-holder xml:lang="en">Korenchenko A.E., Sukhov A.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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://www.rtj-mirea.ru/jour/article/view/1080">https://www.rtj-mirea.ru/jour/article/view/1080</self-uri><abstract><sec><title>Цели</title><p>Цели. В работе теплообменных аппаратов ключевую роль играет скорость теплопередачи в условиях ограниченного пространства. Форма сечения труб может повлиять на характеристики теплообмена. Хотя производство труб кругового сечения проще и обходится дешевле, теплообмен в аппаратах с трубами других поперечных сечений может происходить с большей скоростью, так, чтобы это давало экономические преимущества. Поэтому проведение математического моделирования гидродинамики и теплообмена в трубчатом теплообменном аппарате актуально и интересно как теоретически, так и с прикладной точки зрения.</p><p>Цель исследования – определение влияния формы сечения труб на интенсивность теплопередачи.</p></sec><sec><title>Методы</title><p>Методы. Численные исследования выполнены методом гидродинамики сглаженных частиц. Продемонстрированы возможности метода сглаженных частиц для решения задач промышленного теплообмена.</p></sec><sec><title>Результаты</title><p>Результаты. Анализ интенсивности теплопередачи проведен для труб круглых и прямоугольных сечений. В случаях, когда поперечные сечения труб в теплообменнике являются вытянутыми вдоль некоторого направления, исследовано влияние расположения труб по отношению к набегающему потоку: длинной стороной вдоль потока или поперек его. Исследовано влияние на теплообмен выступов на поверхности труб. Проведен анализ обтекания труб с различными формами поперечных сечений. Выявлены особенности обтекания, найдены поля скоростей и температуры в объеме теплообменника. Найдены значения безразмерного теплового потока (числа Нуссельта) для каждого случая.</p></sec><sec><title>Выводы</title><p>Выводы. Сделан вывод о малом влиянии оребрения труб при ламинарном режиме протекания нагреваемой жидкости через пучок труб-теплоносителей. Наибольшее значение теплового потока наблюдалось для труб прямоугольного сечения, расположенных длинной стороной поперек потока, причем различие с данными, полученными для стандартных круглых труб, составило более 15%.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objectives</title><p>Objectives. In the confined space of heat exchangers, heat transfer rate plays a key role. The cross-sectional shape of the tubes can affect the heat transfer characteristics. Although circular tubes are easier and less expensive to manufacture, heat transfer in heat exchangers with tubes of other cross-sections can take place at higher rates, thus providing economic advantages. This makes the mathematical modeling of hydrodynamics and heat exchange in a tube apparatus relevant and interesting both from the theoretical and applied point of view. The aim of this study is to determine the influence of the shape of the tube cross-section on the heat transfer intensity.</p></sec><sec><title>Methods</title><p>Methods. Numerical investigations were carried out using smoothed particle hydrodynamics. The possibilities of the smoothed particle method for resolving industrial heat transfer problems were demonstrated.</p></sec><sec><title>Results</title><p>Results. Heat transfer intensity was analyzed for tubes of circular and rectangular cross-sections. In cases where the cross sections of tubes in the heat exchanger are elongated in a given direction, the influence of the tube position in relation to the oncoming flow was studied. This was performed either with the long side along the flow or across it. The influence of tube surface protrusions on heat exchange was investigated. The flow around tubes with different cross-sectional shapes was also analyzed. The features of the flow around the tubes were established, and the velocity and temperature fields in the heat exchanger volume were defined. The values of the dimensionless heat flux (Nusselt number) for each case were also found.</p></sec><sec><title>Conclusions</title><p>Conclusions. The influence of finned tubes in the laminar flow regime of heated fluid through the bundle of heat transfer tubes is insignificant. The highest value of the heat flux was observed for tubes of rectangular cross section with the long side transverse to the flow, and the difference with the data obtained for standard round tubes was found to be more than 15%.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>теплопередача</kwd><kwd>теплообменные аппараты</kwd><kwd>численное моделирование</kwd><kwd>гидродинамика сглаженных частиц</kwd><kwd>несжимаемая жидкость</kwd><kwd>периодические граничные условия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heat transfer</kwd><kwd>heat exchanger</kwd><kwd>numerical modeling</kwd><kwd>smoothed particle hydrodynamics</kwd><kwd>incompressible fluid</kwd><kwd>periodic boundary conditions</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Золотоносов Я.Д., Багоутдинова А.Г., Золотоносов А.Я. Трубчатые теплообменники. Моделирование, расчет. М.: Лань; 2021. 272 с. 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