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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Fluid Dynamics</journal-id><journal-title-group><journal-title xml:lang="en">Fluid Dynamics</journal-title><trans-title-group xml:lang="ru"><trans-title>Известия Российской академии наук. Механика жидкости и газа</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1024-7084</issn><issn publication-format="electronic">3034-5340</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">682530</article-id><article-id pub-id-type="doi">10.31857/S1024708424040109</article-id><article-id pub-id-type="edn">OYCNFE</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Round splashes of a viscous liquid</article-title><trans-title-group xml:lang="ru"><trans-title>Круглые всплески вязкой жидкости</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bazilevskii</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Базилевский</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>baz@ipmnet.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Rozhkov</surname><given-names>A. N.</given-names></name><name xml:lang="ru"><surname>Рожков</surname><given-names>А. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>rozhkov@ipmnet.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт проблем механики им. А. Ю. Ишлинского РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-11-11" publication-format="electronic"><day>11</day><month>11</month><year>2024</year></pub-date><issue>4</issue><fpage>128</fpage><lpage>141</lpage><history><date date-type="received" iso-8601-date="2025-06-04"><day>04</day><month>06</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/1024-7084/article/view/682530">https://journals.eco-vector.com/1024-7084/article/view/682530</self-uri><abstract xml:lang="en"><p>The splashes of a highly viscous fluid (glycerol) resulting from its pulsed displacement from a gap between two rapidly approaching disks are studied. It is found that, outside the disks, the splash has the form of a thin film bounded by an annular rim. A physical model of the splash is formulated, and analytical solutions describing its trajectory are given. The calculation results are compared with experimental data. The effects of fluid viscosity, surface tension, and film breakdown are analyzed. It is shown that the key influence on the splash development scenarios is exerted by surface tension of the film connecting the rim to the disks.</p></abstract><trans-abstract xml:lang="ru"><p>Исследуются всплески высоковязкой жидкости (глицерин), возникающие в результате ее импульсного вытеснения из зазора между двумя быстро сближающимися дисками. Обнаружено, что за пределами дисков всплеск имеет форму тонкой пленки, ограниченной кольцевой краевой струей. Формулируется физическая модель всплеска, и приводятся аналитические решения, описывающие его траекторию. Результаты расчетов сравниваются с данными эксперимента. Анализируются эффекты вязкости жидкости, поверхностного натяжения и разрушения пленки. Показано, что ключевое влияние на сценарии развития всплеска оказывает поверхностное натяжение пленки, соединяющей краевую струю с дисками.</p></trans-abstract><kwd-group xml:lang="en"><kwd>impact</kwd><kwd>splash</kwd><kwd>drop</kwd><kwd>film</kwd><kwd>jet</kwd><kwd>viscosity</kwd><kwd>surface tension</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>удар</kwd><kwd>всплеск</kwd><kwd>капля</kwd><kwd>пленка</kwd><kwd>струя</kwd><kwd>вязкость</kwd><kwd>поверхностное натяжение</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">РНФ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap></funding-source><award-id>23-19-00451</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Yarin A.L., Roisman I.V., Tropea C. 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