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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">10.7868/S2073667319020084</article-id><article-id custom-type="elpub" pub-id-type="custom">hydrophysics-58</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>Воздействие негидростатической длинноволновой динамики на гидротехнические сооружения</article-title><trans-title-group xml:lang="en"><trans-title>Impact of non-hydrostatic long wave dynamics on hydrotechnical constructions</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>Вольцингер</surname><given-names>Н. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Voltzinger</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клеванный</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Klevannyy</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>St.-Petersburg</p></bio><email xlink:type="simple">kklevannyy@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт океанологии им. П. П. Ширшова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Shirshov Institute of Oceanology of Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «Кардинал-софт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC CARDINAL-Soft</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>29</day><month>11</month><year>2021</year></pub-date><volume>12</volume><issue>2</issue><fpage>66</fpage><lpage>76</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вольцингер Н.Е., Клеванный К.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Вольцингер Н.Е., Клеванный К.А.</copyright-holder><copyright-holder xml:lang="en">Voltzinger N.E., Klevannyy K.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://hydrophysics.spbrc.ru/jour/article/view/58">https://hydrophysics.spbrc.ru/jour/article/view/58</self-uri><abstract><p>Для моделирования длинноволнового воздействия на гидротехнические сооружения ставится краевая задача в трехмерной области для уравнений движения, неразрывности, конституентов плотности и характеристик турбулентности. Задача решается разностным методом поэтапно на каждом временном шаге; негидростатическая компонента давления определяется на заключительном этапе решением краевой задачи для уравнения Пуассона. Расчеты выполняются с помощью программного комплекса CARDINAL. Используется гранично-зависимая криволинейная сетка, по вертикали s-преобразование. Характеристики турбулентности рассчитываются с помощью k-e модели. Численный метод тестируется на модельных примерах. Для оценки влияния негидростатического модуля приводятся результаты расчета экстремального цунами на водозаборе атомной электростанции Эль-Дабаа, Египет, проектируемой на побережье Средиземного моря, и расчет поля скорости при штормовом нагоне в судопропускном сооружении комплекса сооружений защиты Санкт-Петербурга от наводнений. Обнаружено, что в негидростатической постановке при входе в узость, на поднятии дна увеличение вертикальных скоростей во всей толще воды до поверхности вызывает здесь локальный подъем уровня. Приводимые приложения метода показывают, что динамическая компонента давления может заметно модифицировать структуру течений на элементах гидротехнического сооружения.</p></abstract><trans-abstract xml:lang="en"><p>For modeling of long-wave impact on hydraulic engineering constructions the boundary value problem in three-dimensional area for the equations of the motion, continuity, constituents of density and characteristics of turbulence is set. The problem is solved by finite-difference fractional time method; non-hydrostatic component of pressure is defined at the final stage by the solution of a boundary value problem for the Poisson’s equation. Calculations are carried out by means of the program system CARDINAL. The boundary-fitted curvilinear grid is used, in the vertical direction s-transformation is used. Characteristics of turbulence are calculated with the help of k-e model. The numerical method is tested on simplified examples. Assessment of influence of non-hydrostatic pressure component is made with calculation of extreme tsunami on a water intake of nuclear power plant El-Dabaa, Egypt projected on the Mediterranean coast and calculation of the velocity field during the storm surge in the navigation canal of St.-Petersburg Flood Protection Barrier. It is revealed that in non-hydrostatic solution at an entrance to narrowness, on a bottom raising increase in vertical velocities from bottom to surface, causes local rise in water level here. The provided applications of a method show what dynamic component of pressure can modify considerably structure of currents on elements of the hydraulic engineering constructions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидростатика/негидростатика</kwd><kwd>проекционный метод</kwd><kwd>цунами</kwd><kwd>штормовой нагон</kwd><kwd>комплекс сооружений защиты Санкт-Петербурга от наводнений</kwd><kwd>программный комплекс CARDINAL</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hydrostatics/non-hydrostatics</kwd><kwd>projection method</kwd><kwd>tsunami</kwd><kwd>storm surge</kwd><kwd>St.-Petersburg Flood Protection Barrier</kwd><kwd>program system CARDINAL</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФАНО России (тема № 0149-2019-0015).</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">Вольцингер Н.E., Kлеванный K.A., Пелиновский E.Н. 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