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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">najo-1185</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="en"><subject>PHYSICS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИКА</subject></subj-group></article-categories><title-group><article-title>Simulation of flows in nanochannels by the molecular dynamics method</article-title><trans-title-group xml:lang="ru"><trans-title>Моделирование течений в нанокластерах методом молекулярной динамики</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рудяк</surname><given-names>В. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Rudyak</surname><given-names>V. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Head of Department; Leading Researcher; Doctor of Science, Professor</p><p>Novosibirsk</p></bio><email xlink:type="simple">valery.rudyak@mail.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>Белкин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Belkin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Associate Professor; Senior Researcher; PhD, Associate Professor</p></bio><email xlink:type="simple">a_belkin@ngs.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>Егоров</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Egorov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Assistant Professor</p></bio><email xlink:type="simple">v.v.egorov@bk.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванов</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новосибирск</p></bio><bio xml:lang="en"><p>Assistant Professor; Engineer</p></bio><email xlink:type="simple">divanov@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Новосибирский Государственный Архитектурно-Строительный Университет (Сибстрин)<country>Россия</country></aff><aff xml:lang="en">Novosibirsk State University of Architecture and Civil Engineering; Kutateladze Institute of Thermophysics, Siberian Branch of the RAS<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Новосибирский Государственный Архитектурно-Строительный Университет (Сибстрин)<country>Россия</country></aff><aff xml:lang="en">Novosibirsk State University of Architecture and Civil Engineering<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2011</year></pub-date><pub-date pub-type="epub"><day>18</day><month>08</month><year>2025</year></pub-date><volume>2</volume><issue>4</issue><fpage>100</fpage><lpage>112</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Rudyak V.Y., Belkin A.A., Egorov V.V., Ivanov D.A., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Рудяк В.Я., Белкин А.А., Егоров В.В., Иванов Д.А.</copyright-holder><copyright-holder xml:lang="en">Rudyak V.Y., Belkin A.A., Egorov V.V., Ivanov D.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://nanojournal.ifmo.ru/jour/article/view/1185">https://nanojournal.ifmo.ru/jour/article/view/1185</self-uri><abstract><p>On the basis of molecular dynamics method the algorithm for the first time enables to simulate a plane flow in nanochannels with a pressure drop is proposed. Interaction between molecules of the fluid is simulated by the potential of hard spheres or the Lennard-Jones potential. The properties of nanoflows are studied. It is shown that the structure of fluids in nanochannels differs significantly from its structure in the bulk. Data on the dependence of friction coefficient on the Knudsen and Reynolds numbers are presented. It is established that the pressure drop depends strongly on the accommodation coefficients (for the fluid of hard spheres) or the parameters of the interaction of fluid molecules with molecules of the wall (for the Lennard-Jones fluid).</p></abstract><trans-abstract xml:lang="ru"><p>На основе метода молекулярной динамики предложен алгоритм, впервые позволяющий моделировать плоское течение флюида в наноканалах с перепадом давления. Взаимодействие молекул флюида моделировалось потенциалом твердых сфер или потенциалом Леннард-Джонса. Изучены свойства нанотечений. Показано, что структура флюида в наноканале существенно отличается от его структуры в объеме. Представлены данные о зависимости коэффициента трения флюида на стенке от чисел Кнудсена и Рейнольдса. Установлено, что падение давления существенно зависит от коэффициентов аккомодации (для флюида твердых сфер) или от параметров взаимодействия молекул стенки с молекулами флюида (для флюида Леннард-Джонса).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>наноканалы</kwd><kwd>падение давления</kwd><kwd>сопротивление трения</kwd><kwd>метод молекулярной динамики</kwd><kwd>структура жидкости</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nanochannels</kwd><kwd>pressure drop</kwd><kwd>friction head loss</kwd><kwd>molecular dynamics method</kwd><kwd>fluid structure</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена при частичной поддержке РФФИ (грант № 10-01-00074) и ФЦП «Научные и научно-педагогические кадры инновационной России на 2009 — 2013 годы» (Гос. контракты П230, 14.740.11.0579).</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">Nelson P.H. 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