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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">vmait</journal-id><journal-title-group><journal-title xml:lang="ru">Computational Mathematics and Information Technologies</journal-title><trans-title-group xml:lang="en"><trans-title>Computational Mathematics and Information Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2587-8999</issn><publisher><publisher-name>Донской государственный технический университет</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vmait-84</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Математическое моделирование колебательных процессов со свободной границей</article-title><trans-title-group xml:lang="en"><trans-title>Mathematical modeling of oscillatory processes with a free boundary</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8323-6005</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чистяков</surname><given-names>Александр Евгеньевич</given-names></name><name name-style="western" xml:lang="en"><surname>Chistyakov</surname><given-names>Alexander Ev.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чистяков Александр Евгеньевич, профессор кафедры «Программное обеспечение вычислительной техники и автоматизированных систем» Донского государственного технического университета (РФ, 344000, г. Ростов-на-Дону, пл. Гагарина, 1), доктор физико-математических наук</p></bio><bio xml:lang="en"><p>Chistyakov Alexander Ev., Professor, Department "Software computer engineering and automated systems", Don State Technical University (1 Gagarin sq., Rostov-on-Don, Russian Federation), Doctor of Science in Physics and Maths.</p></bio><email xlink:type="simple">cheese_05@mail.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/0000-0001-6687-3216</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Проценко</surname><given-names>Елена Анатольевна</given-names></name><name name-style="western" xml:lang="en"><surname>Protsenko</surname><given-names>Elena An.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Проценко Елена Анатольевна, доцент кафедры «Математика» Таганрогского института имени А.П. Чехова (филиал) РГЭУ (РИНХ) (РФ, Ростовская область, г. Таганрог, ул. Инициативная, 48), кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>Protsenko Elena An., Associate Professor, Mathematics Department, Taganrog Institute named after A. P. Chekhov (branch) of Rostov state University (RINE) (48 Initiative St., Taganrog, Russian Federation), Candidate of Science in Physics and Maths.</p></bio><email xlink:type="simple">eapros@rambler.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>Тимофеева</surname><given-names>Елена Федоровна</given-names></name><name name-style="western" xml:lang="en"><surname>Timofeeva</surname><given-names>Elena F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тимофеева Елена Федоровна, доцент кафедры «Прикладная математика и компьютерные технологии» Северо-Кавказского государственного технического университета (РФ, 355029, г. Ставрополь, просп. Кулакова, 2), кандидат физико-математических наук.</p></bio><bio xml:lang="en"><p>Timofeeva Elena F., Associate Professor, Department of Applied Mathematics and Computer Technology, North Caucasus State Technical University (2, Kulakov Pr., Stavropol, 355029, Russian Federation), Candidate of Science in Physics and Maths</p></bio><email xlink:type="simple">teflena@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Донской государственный технический университет &#13;
(РФ, 344000, г. Ростов-на-Дону, пл. Гагарина, 1)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Don State Technical University &#13;
(1 Gagarin sq., Rostov-on-Don, Russian Federation)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Таганрогский институт имени А.П. Чехова (филиал) РГЭУ (РИНХ) &#13;
(РФ, Ростовская область, г. Таганрог, ул. Инициативная, 48)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Taganrog Institute named after A. P. Chekhov (branch) of Rostov state University (RINE) &#13;
(48 Initiative St., Taganrog, Russian Federation)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Северо-Кавказский государственный технический университет&#13;
(РФ, 355029, г. Ставрополь, просп. Кулакова, 2)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>North Caucasus State Technical University &#13;
(2, Kulakov Pr., Stavropol, 355029, Russian Federation)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>29</day><month>03</month><year>2023</year></pub-date><volume>1</volume><issue>1</issue><elocation-id>84</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Чистяков А.Е., Проценко Е.А., Тимофеева Е.Ф., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Чистяков А.Е., Проценко Е.А., Тимофеева Е.Ф.</copyright-holder><copyright-holder xml:lang="en">Chistyakov A.E., Protsenko E.A., Timofeeva E.F.</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.cmit-journal.ru/jour/article/view/84">https://www.cmit-journal.ru/jour/article/view/84</self-uri><abstract><p>Введение. Статья посвящена исследованию процесса волновых колебаний и разработке комплекса программ, предназначенного для описания распространения волновых процессов. Целью настоящей работы является математическое моделирование и разработка реализующего модель, комплекса программ, предназначенного для описания распространения волновых колебаний со свободной границей на основе конечно-разностного метода.Материалы и методы. Предложена математическая модель, описывающая динамику распространения волновых колебаний, в основе которой лежит неоднородное волновое уравнение с соответствующими начальными и граничными условиями. Дискретизация модели проведена интегро-интерполяционным методом, при этом реализован подход, учитывающий частичную «заполненность» расчетных ячеек. Для решения, полученных сеточных уравнений применен адаптивный модифицированный попеременно-треугольный итерационный метод вариационного типа, имеющий наиболее высокую скорость сходимости в классе двухслойных итерационных методов.Результаты исследования. Разработаны математическая модель и программное обеспечение для численного моделирования распространения волн. Приведены результаты численных экспериментов. Разработанные численные алгоритмы и их компьютерная реализация использованы для исследования динамики распространения волновых процессов при наличии свободной границы.Обсуждение и заключения. Полученные результаты могут быть использованы в процессе исследования динамики распространения волновых процессов при наличии свободной границы, контроля при проведении экспериментальных исследований и т.д.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. The paper is devoted to research of the wave processes with free boundary based on the finite-difference method. Materials and methods. A mathematical model describing the dynamics of distribution of wave fluctuation was proposed on the basis of heterogeneous wave equation with the appropriate initial and boundary conditions. Discretization of the model was conducted using the integro-interpolation method taking into account the partial "filling" of computational cells. The adaptive modified alternating triangular iterative method of variational type with the highest rate of convergence in the class of two-layer iterative methods for solving the developed difference equations. Results. The developed discrete mathematical model for numerical simulation of wave propagation. The results of numerical experiments were obtained. The developed numerical algorithms and their computer implementation were used to research the dynamics of distribution of wave processes in the presence of the free boundary. Discussion and conclusions. The obtained results can be used for research of the dynamics of distribution of the wave processes with a free boundary and controlling in conducting experimental researches, evaluation and diagnosis, etc.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>волновые колебания</kwd><kwd>сеточные уравнения</kwd><kwd>адаптивный модифицированный попеременно-треугольный итерационный метод</kwd></kwd-group><kwd-group xml:lang="en"><kwd>wave oscillations</kwd><kwd>grid equations</kwd><kwd>adaptive modified alternating triangular iterative method</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке РФФИ по проектам № 15-01-08619, № 15-07-08626.</funding-statement><funding-statement xml:lang="en">The paper was supported by RFFR project № 15-07-08626, № 15-01-08619.</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">Markov, G.T., Chaplin, A.F. Excitation of electromagnetic waves. Moscow, Radio and communication, 1983, 296 p.</mixed-citation><mixed-citation xml:lang="en">Markov, G.T., Chaplin, A.F. Excitation of electromagnetic waves. Moscow, Radio and communication, 1983, 296 p.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Vladimirov, V.S. Equations of mathematical physics. The textbook for phys. and mechanical-mathematical. spec. universities. 4-th ed. Moscow, Nauka, 1981, 512 p.</mixed-citation><mixed-citation xml:lang="en">Vladimirov, V.S. Equations of mathematical physics. The textbook for phys. and mechanical-mathematical. spec. universities. 4-th ed. Moscow, Nauka, 1981, 512 p.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov, A.I., Zuev, V.N., Semenisty, V.V. Equations of mathematical physics. Taganrog, TRTU, 2005.</mixed-citation><mixed-citation xml:lang="en">Sukhinov, A.I., Zuev, V.N., Semenisty, V.V. Equations of mathematical physics. Taganrog, TRTU, 2005.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Samarskii, A.A. The Theory of Difference Schemes. Moscow, Nauka, 1989.</mixed-citation><mixed-citation xml:lang="en">Samarskii, A.A. The Theory of Difference Schemes. Moscow, Nauka, 1989.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Samarskii, A.A., Nikolaev, E.S. Numerical Methods for Grid Equations. Moscow, Nauka, 1978.</mixed-citation><mixed-citation xml:lang="en">Samarskii, A.A., Nikolaev, E.S. Numerical Methods for Grid Equations. Moscow, Nauka, 1978.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov A.I., Chistyakov, A.E., Shishenya, A.V. Error estimate for diffusion equations solved by schemes with weights. Mathematical Models and Computer Simulations, 2014, vol. 6, iss. 3, pp. 324‒331.</mixed-citation><mixed-citation xml:lang="en">Sukhinov A.I., Chistyakov, A.E., Shishenya, A.V. Error estimate for diffusion equations solved by schemes with weights. Mathematical Models and Computer Simulations, 2014, vol. 6, iss. 3, pp. 324‒331.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov, A.I., Chistyakov, A.E., Fomenko, N.A. Method of construction difference scheme for problems of diffusion-convection reaction, takes into the degree filling of the control volume. Izvestiya SFedU, Engineering Sciences, 2013, no. 4 (141), pp. 87‒98.</mixed-citation><mixed-citation xml:lang="en">Sukhinov, A.I., Chistyakov, A.E., Fomenko, N.A. Method of construction difference scheme for problems of diffusion-convection reaction, takes into the degree filling of the control volume. Izvestiya SFedU, Engineering Sciences, 2013, no. 4 (141), pp. 87‒98.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Konovalov, A.N. To the Theory of the Alternating Triangle Iteration Method. Sib. Math. J., 2002 no. 43, pp. 552–572.</mixed-citation><mixed-citation xml:lang="en">Konovalov, A.N. To the Theory of the Alternating Triangle Iteration Method. Sib. Math. J., 2002 no. 43, pp. 552–572.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov, A.I., Chistyakov, A.E., Yakobovskii, M.V. Accuracy of the numerical solution of the equations of diffusion-convection using the difference schemes of second and fourth order approximation error. Bulletin of the South Ural State University, series “Computational Mathematics and Software Engineering”, 2016, vol. 5, iss. 1, pp. 47–62.</mixed-citation><mixed-citation xml:lang="en">Sukhinov, A.I., Chistyakov, A.E., Yakobovskii, M.V. Accuracy of the numerical solution of the equations of diffusion-convection using the difference schemes of second and fourth order approximation error. Bulletin of the South Ural State University, series “Computational Mathematics and Software Engineering”, 2016, vol. 5, iss. 1, pp. 47–62.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov, A.I., Chistyakov, A.E. Adaptive modified alternating triangular iterative method for solving grid equations with a non-self-adjoint operator. Mathematical Models and Computer Simulations, 2012, vol. 4, iss. 4, pp. 398‒409.</mixed-citation><mixed-citation xml:lang="en">Sukhinov, A.I., Chistyakov, A.E. Adaptive modified alternating triangular iterative method for solving grid equations with a non-self-adjoint operator. Mathematical Models and Computer Simulations, 2012, vol. 4, iss. 4, pp. 398‒409.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov, A.I., Chistyakov, A.E., Timofeeva, E.F., Shishenya, A.V. Mathematical model for calculating coastal wave processes operator. Mathematical Models and Computer Simulations, 2013, vol. 5, iss. 2, pp 122-129.</mixed-citation><mixed-citation xml:lang="en">Sukhinov, A.I., Chistyakov, A.E., Timofeeva, E.F., Shishenya, A.V. Mathematical model for calculating coastal wave processes operator. Mathematical Models and Computer Simulations, 2013, vol. 5, iss. 2, pp 122-129.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov, A.I., Chistyakov, A.E., Protsenko, E.A. Two-Dimensional Mathematical Model of Sediment Transportation. Izv. Yuzhn. Federal. Univ., Tekh. Nauki, 2011, no. 8, pp. 32–44.</mixed-citation><mixed-citation xml:lang="en">Sukhinov, A.I., Chistyakov, A.E., Protsenko, E.A. Two-Dimensional Mathematical Model of Sediment Transportation. Izv. Yuzhn. Federal. Univ., Tekh. Nauki, 2011, no. 8, pp. 32–44.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov, A.I., Chistyakov, A.E., Protsenko, E.A. Mathematical modeling of sediment transport in coastal aquatic systems on a multiprocessor computer system. Computational methods and programming, 2014, vol. 15, pp. 610‒620.</mixed-citation><mixed-citation xml:lang="en">Sukhinov, A.I., Chistyakov, A.E., Protsenko, E.A. Mathematical modeling of sediment transport in coastal aquatic systems on a multiprocessor computer system. Computational methods and programming, 2014, vol. 15, pp. 610‒620.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov, A.I., Protsenko, E.A., Chistyakov, A.E., Shreter, S.A. Comparison of computational efficiencies of explicit and implicit schemes for the sediment transport problem in coastal zones. Numerical Methods and Programming, 2015, vol. 16, no. 3, pp. 328–338.</mixed-citation><mixed-citation xml:lang="en">Sukhinov, A.I., Protsenko, E.A., Chistyakov, A.E., Shreter, S.A. Comparison of computational efficiencies of explicit and implicit schemes for the sediment transport problem in coastal zones. Numerical Methods and Programming, 2015, vol. 16, no. 3, pp. 328–338.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Nikitina, A.V., Semenyakina, A.A., Chistyakov, A.E., Protsenko, E.A., Yakovenko, I.V. Application schemes of higher order accuracy for solving biological kinetics on a multiprocessor computer system. Basic Research, 2015, no. 12-3, pp. 500‒504.</mixed-citation><mixed-citation xml:lang="en">Nikitina, A.V., Semenyakina, A.A., Chistyakov, A.E., Protsenko, E.A., Yakovenko, I.V. Application schemes of higher order accuracy for solving biological kinetics on a multiprocessor computer system. Basic Research, 2015, no. 12-3, pp. 500‒504.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Sukhinov, A.I., Chistyakov, A.E., Protsenko, E.A. Mathematical modeling of sediment transport in the coastal zone of shallow reservoirs. Mathematical Models and Computer Simulations, 2014, vol. 6, no. 4, pp. 351‒363.</mixed-citation><mixed-citation xml:lang="en">Sukhinov, A.I., Chistyakov, A.E., Protsenko, E.A. Mathematical modeling of sediment transport in the coastal zone of shallow reservoirs. Mathematical Models and Computer Simulations, 2014, vol. 6, no. 4, pp. 351‒363.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
