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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">kaz29</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Казахстанско-Британского технического университета</journal-title><trans-title-group xml:lang="en"><trans-title>Herald of the Kazakh-British Technical University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-6688</issn><issn pub-type="epub">2959-8109</issn><publisher><publisher-name>Казахстанско-Британский Технический Университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55452/1998-6688-2023-20-2-73-91</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz29-709</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>МАТЕМАТИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ РАСПРОСТРАНЕНИЯ ЧАСТИЦ SARS-COV-2 ПРИ РЕФЛЕКСАХ ЧЕЛОВЕКА</article-title><trans-title-group xml:lang="en"><trans-title>MATHEMATICAL MODELING OF SARS-COV-2 PARTICLES’ PROPAGATION DURING HUMAN REFLEXES</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-5848-5964</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сагандык</surname><given-names>А. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Sagandyk</surname><given-names>A. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сагандык Аружан Талгаткызы, Магистрант, Школа прикладной математики</p><p>ул. Толе би, 59, 050000, г. Алматы</p></bio><bio xml:lang="en"><p>Sagandyk Aruzhan Talgatkyzy, Master Student, School of applied mathematics</p><p>Tole bi 59, 050000, Almaty</p></bio><email xlink:type="simple">sgnkaru@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1937-8615</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Исахов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Issakhov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Исахов Алибек Абдиашимович, PhD, профессор</p><p>ул. Толе би, 59, 050000, г. Алматы</p><p>ул. Аль-Фараби, 71, 050038, г. Алматы</p></bio><bio xml:lang="en"><p>Issakhov Alibek A., PhD, Professor</p><p>Tole bi 59, 050000, Almaty st. al-Farabi, 71, 050038</p></bio><email xlink:type="simple">alibek.issakhov@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Казахстанско-Британский технический университет<country>Казахстан</country></aff><aff xml:lang="en">Kazakh-British technical university<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Казахстанско-Британский технический университет; Казахский Национальный университет им. аль-Фараби<country>Казахстан</country></aff><aff xml:lang="en">Kazakh-British technical university; Al-Farabi Kazakh national university<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2023</year></pub-date><volume>20</volume><issue>2</issue><fpage>73</fpage><lpage>91</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сагандык А.Т., Исахов А.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Сагандык А.Т., Исахов А.А.</copyright-holder><copyright-holder xml:lang="en">Sagandyk A.T., Issakhov A.A.</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://vestnik.kbtu.edu.kz/jour/article/view/709">https://vestnik.kbtu.edu.kz/jour/article/view/709</self-uri><abstract><p>Неизвестный вирус, обнаруженный в городе Ухань в 2019 г., изменил судьбу мира, вызвав экономический ущерб, сокращение общей численности населения и т.д. Проникновение зараженных коронавирусом частиц в клетку человека способно вызвать перепроизводство цитокинов и антител. Этот процесс приводит к летальному исходу. Следовательно, из-за патогенности, серьезности и неожиданности SARS-CoV-2 необходимо принять эффективные меры безопасности. Наряду с безопасным социальным дистанцированием и ношением маски наличие кондиционера, системы вентиляции и открытых окон может снизить распространение коронавируса в закрытых помещениях. Данная статья посвящена моделированию распространения частиц коронавируса при дыхательных рефлексах человека в трехмерном ограниченном пространстве с входными и выходными граничными условиями. Для решения задачи использовались уравнения импульса и неразрывности, k-ε модель турбулентности и модель дисперсии Лагранжа. SIMPLE – это основной метод решения всех основных уравнений. Основные цели этой работы – продемонстрировать эффективность кондиционирования воздуха и открытых окон в предотвращении распространения вирусов и изучить движение частиц в вычислительной области.</p></abstract><trans-abstract xml:lang="en"><p>An unknown virus, which was detected in Wuhan city in 2019, had changed fate of the world immediately causing an economic loss, decrease in total population and etc. A penetration of coronavirus contaminated particles to a human cell is able to cause an overproduction of cytokines and antibodies. This process gives a rise to fatal cases. Hence, because of SARS-CoV-2’s pathogenicity, severity and unexpectedness, effective safety measures should be implemented. Along with safe social distancing and wearing a mask, a presence of air conditioning, ventilation system and open windows can reduce the coronavirus propagation in enclosed spaces. The present article focuses on the modeling of coronavirus particles’ propagation during human respiratory reflexes within a constructed three-dimensional confined space with inlet and outlet boundary conditions. Momentum and continuity equations, k-ε turbulence model and Lagrangian dispersion model were utilized to solve the problem. SIMPLE is a main method to solve all governing equations. The primary objectives of this work are to demonstrate the efficiency of air conditioning and open windows in preventing the spread of viruses and to examine particle behavior in the computational domain.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>SARS-CoV-2</kwd><kwd>распространение частиц SARS-CoV-2</kwd><kwd>частицы и аэрозоли коронавируса</kwd><kwd>вычислительная гидродинамика</kwd><kwd>моделирование</kwd><kwd>офисное помещение</kwd><kwd>кондиционирование воздуха</kwd><kwd>открытое окно</kwd></kwd-group><kwd-group xml:lang="en"><kwd>SARS-CoV-2</kwd><kwd>SARS-CoV-2 particles’ transmission</kwd><kwd>coronavirus particles and aerosols</kwd><kwd>CFD (computational fluid dynamics)</kwd><kwd>modeling</kwd><kwd>office room</kwd><kwd>air conditioning</kwd><kwd>open window</kwd></kwd-group><funding-group xml:lang="en"><funding-statement>This work is supported by the grant from the Ministry of Science and Higher Education of the Republic of Kazakhstan (AP09259783).</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">Asadi S., Bouvier N., Wexler A.S. &amp; Ristenpart W.D. 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