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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">10.59887/2073-6673.2025.18(4)-3</article-id><article-id custom-type="edn" pub-id-type="custom">DULUYA</article-id><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-1477</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>Использование псевдоспектрального метода высокого порядка HOSM для моделирования нелинейных волн на поверхности воды конечной глубины</article-title><trans-title-group xml:lang="en"><trans-title>The use of pseudo-spectral high order method HOSM for simulations of nonlinear waves on the surface of finite depth water</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7782-2991</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Слюняев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Slunyaev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Слюняев Алексей Викторович, доктор физико-математических наук, член-корреспондент РАН, заведующий сектором</p><p>WoS ResearcherID: A-3272-2014, Scopus Author ID: 55957049100 </p><p>603950, Нижний Новгород, ул. Ульянова, д. 46 </p><p>603155, Нижний Новгород, ул. Большая Печерская, д. 25/12 </p></bio><bio xml:lang="en"><p>WoS ResearcherID: A-3272-2014, Scopus Author ID: 55957049100</p><p>46 Ulyanova Str., Nizhny Novgorod 603950 </p><p>25/12 Str. Bolshaya Pecherskaya, Nizhny Novgorod, 603155 </p></bio><email xlink:type="simple">slunyaev@ipfran.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт прикладной физики им. А.В. Гапонова-Грехова РАН ; Национальный исследовательский университет «Высшая школа экономики»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A.V. Gaponov-Grekhov Institute of Applied Physics RAS ; HSE 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>22</day><month>12</month><year>2025</year></pub-date><volume>18</volume><issue>4</issue><fpage>28</fpage><lpage>49</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Слюняев А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Слюняев А.В.</copyright-holder><copyright-holder xml:lang="en">Slunyaev 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://hydrophysics.spbrc.ru/jour/article/view/1477">https://hydrophysics.spbrc.ru/jour/article/view/1477</self-uri><abstract><p>Исследованы режимы и ограничения метода численного решения уравнений гидродинамики, использующего аппроксимацию приповерхностного потенциала скорости разложением Тейлора высокого порядка (High Order Spectral Method, HOSM). Этот подход рассматривается в контексте моделирования больших ансамблей полей смещения морской поверхности в условиях конечной глубины. Основное внимание уделено описанию сильно нелинейных волн и волн с широким частотным спектром. Исследование выполнено в планарной геометрии.</p></abstract><trans-abstract xml:lang="en"><p>Regimes and limitations of the numerical solution method for hydrodynamic equations using the approximation of the near-surface velocity potential by the high-order Taylor expansion (High Order Spectral Method, HOSM) are investigated. This approach is considered in the context of simulation of large ensembles of sea surface displacement fields under finite-depth conditions. The main attention is paid to the description of strongly nonlinear waves and waves with a wide frequency spectrum. The study is performed in planar geometry.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>потенциальные гравитационные волны на поверхности воды</kwd><kwd>поверхностные морские волны</kwd><kwd>нелинейные волны</kwd><kwd>численное моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>potential gravity waves on the water surface</kwd><kwd>sea surface waves</kwd><kwd>nonlinear waves</kwd><kwd>numerical simulation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование поддержано проектом Российского научного фонда № 22-17-00153.</funding-statement><funding-statement xml:lang="en">The research is supported by the Russian Science Foundation under the grant № 22-17-00153.</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">Tanaka M. 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