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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">hydrophysics</journal-id><journal-title-group><journal-title xml:lang="ru">Фундаментальная и прикладная гидрофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Fundamental and Applied Hydrophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-6673</issn><issn pub-type="epub">2782-5221</issn><publisher><publisher-name>St. Petersburg Research Center of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.59887/2073-6673.2023.16(2)-3</article-id><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-1213</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>ФУНДАМЕНТАЛЬНЫЕ ВОПРОСЫ ГИДРОФИЗИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>FUNDAMENTAL ISSUES OF HYDROPHYSICS</subject></subj-group></article-categories><title-group><article-title>Испытания ускоренной двухмерной модели поверхностных потенциальных волн</article-title><trans-title-group xml:lang="en"><trans-title>Testing of the accelerated two-dimensional model of surface potential waves</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1826-0452</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фокина</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Fokina</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ФОКИНА Карина Владимировна</p><p>117997, Москва, Нахимовский проспект, 36</p><p>195196, Санкт-Петербург, Малоохтинский пр., 98</p></bio><bio xml:lang="en"><p>117997, Nahimovsky Pr., 36, Moscow</p><p>195196, Malookhtinsky Pr., 98, St Petersburg</p></bio><email xlink:type="simple">fokinakarina@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт океанологии им. П.П. Ширшова РАН; Российский государственный гидрометеорологический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Shirshov Institute of Oceanology RAS; Russian State Hydrometeorological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>25</day><month>07</month><year>2023</year></pub-date><volume>16</volume><issue>2</issue><fpage>34</fpage><lpage>43</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Фокина К.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Фокина К.В.</copyright-holder><copyright-holder xml:lang="en">Fokina K.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://hydrophysics.spbrc.ru/jour/article/view/1213">https://hydrophysics.spbrc.ru/jour/article/view/1213</self-uri><abstract><p>Работа посвящена дальнейшей проверке ускоренного метода моделирования двухмерных поверхностных волн на бесконечной глубине с использованием двухмерной модели, полученной путём упрощения трёхмерных уравнений для потенциальных периодических волн. Упрощённая модель основана на разделении потенциала скорости на линейную и нелинейную составляющие и анализе точного уравнения Пуассона для нелинейной составляющей потенциала на свободной поверхности. Впервые дан вывод соотношения для расчёта полной кинетической энергии в отслеживающей поверхность системе координат. Рассчитанные по ускоренной модели спектральные характеристики волнового поля сравниваются с результатами эквивалентной трёхмерной модели, которая основана на численном решении трёхмерного уравнения Пуассона, записанного в поверхностных координатах для нелинейной составляющей потенциала скорости. Проведённое сравнение демонстрирует, что результаты, полученные по двум различным версиям модели, хорошо согласуются между собой, что позволяет использовать упрощённую модель для быстрого воспроизведения динамики волнового поля, увеличив тем самым скорость расчётов примерно на два порядка.</p></abstract><trans-abstract xml:lang="en"><p>The paper focuses on the validation of the accelerated method for simulation of 2D-surface waves with a use of 2D-model derived by simplifications of 3D-equations for potential periodic waves at infinite depth. The separation of the velocity potential into nonlinear and linear components is used. A derivation of the equation for the total kinetic energy calculation in the surface-following coordinate system is given for the first time. The spectral characteristics of the wave field calculated with the accelerated model are compared with the results from the equivalent full 3D-model. The 3D-model is based on the numerical solution of the 3D-Poisson equation written in surface coordinates for the nonlinear component of the velocity potential. The similarity of the results obtained from the two versions of the model confirms that the new accelerated model can be used to quickly reproduce the wave field dynamics and thereby increase a speed of calculations by about two orders.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фазо-разрешающее моделирование</kwd><kwd>волновой спектр</kwd><kwd>приток энергии</kwd><kwd>вертикальная скорость на поверхности</kwd></kwd-group><kwd-group xml:lang="en"><kwd>phase-resolving modeling</kwd><kwd>wave spectrum</kwd><kwd>energy input</kwd><kwd>vertical velocity on the surface</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа проводилась при поддержке Российского Научного Фонда (проект № 22-21-00139).</funding-statement><funding-statement xml:lang="en">The research was supported by Russian Science Foundation RSF (project No. 22-21-00139).</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">Chalikov D., Sheinin D. 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